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Is or possible to disable quad core on this phone? I can see that s3 handles everything done with dial core
comc49 said:
Is or possible to disable quad core on this phone? I can see that s3 handles everything done with dial core
Click to expand...
Click to collapse
Even HTC G1 can get things done, with a half a core free to eat pop corn.
To your question, if you are patient enough then there should be safe and easy way very soon.
Yes, it is possible.
Root the phone and then echo 0 > /sys/devices/system/cpu/cpu#/online, where # is the number of the core you want to take offline.
As for governers that automatically hotplug cores on and off, we will have those soon enough.
comc49 said:
Is or possible to disable quad core on this phone? I can see that s3 handles everything done with dial core
Click to expand...
Click to collapse
But why? I'm curious to why.... One would think that ox you're going to do that... Just get a non quad core phone.
Sent from my Nexus 4 using xda premium
Locksmith81 said:
But why? I'm curious to why.... One would think that ox you're going to do that... Just get a non quad core phone.
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
But then you don't get that fancy Adreno 320 GPU with a standard dual-core phone
jacklebott said:
But then you don't get that fancy Adreno 320 GPU with a standard dual-core phone
Click to expand...
Click to collapse
And you'll always have the option to enable all 4 cores.
Sent from my Nexus 4 using xda premium
+ battery life
Isn't 4 cores better for battery life because the amount of work is spread between them, eg. if the system is running on 4 cores @ say 1Ghz, but if you're using two cores, then it might be higher CPU usage on the two cores.
parker09 said:
Isn't 4 cores better for battery life because the amount of work is spread between them, eg. if the system is running on 4 cores @ say 1Ghz, but if you're using two cores, then it might be higher CPU usage on the two cores.
Click to expand...
Click to collapse
you can just use Setcpu to underclock your phone. no need to shutdown any cores. you just need to be rooted and install Setcpu. i did this and i noticed how much battery life i had afterwards. besides, there is no lag by underclocking it down.
As to my knowledge, turning off cores does not save any more battery. I believe the whole CPU is powered as a whole. Now like the guy said above, 4 cores running at 486MHz is a lot more battery efficient than scaling the processor to 702MHz for one core.
Reason being the cpu has to turn up the clock speed, which increases the voltage used by the CPU.
Also, if you're looking to save battery, undervolting is far better than disabling cores.
qwahchees said:
As to my knowledge, turning off cores does not save any more battery. I believe the whole CPU is powered as a whole. Now like the guy said above, 4 cores running at 486MHz is a lot more battery efficient than scaling the processor to 702MHz for one core.
Reason being the cpu has to turn up the clock speed, which increases the voltage used by the CPU.
Also, if you're looking to save battery, undervolting is far better than disabling cores.
Click to expand...
Click to collapse
On another thread it seems that you can under volt by a large margin with I'll effects.
Not got n4 yet but if its anything like the n7 you should be able to under clock quite a bit before it becomes noticeable.
Sent from my Nexus 7 using Tapatalk 2
Faux 005 kernel using Intellidemand governor disables the 3 cores when not needed, and then turns them back on when needed (hotplug)
qwahchees said:
As to my knowledge, turning off cores does not save any more battery. I believe the whole CPU is powered as a whole. Now like the guy said above, 4 cores running at 486MHz is a lot more battery efficient than scaling the processor to 702MHz for one core.
Reason being the cpu has to turn up the clock speed, which increases the voltage used by the CPU.
Also, if you're looking to save battery, undervolting is far better than disabling cores.
Click to expand...
Click to collapse
I think this is correct, I'm learning about computer architecture now in class and from what I understood it's like this. If I were to build a house by myself it would not only take longer to finish but I would also be more tired when I did as opposed to sharing all the tasks with 3 other people. Also note that everyone(4 people) would have more energy left over for other tasks when the house is finished. I haven't finished this chapter yet so don't quote me lol.
Nexus4 cores come back online, even when disabled!
Ranguvar said:
Yes, it is possible.
Root the phone and then echo 0 > /sys/devices/system/cpu/cpu#/online, where # is the number of the core you want to take offline.
As for governers that automatically hotplug cores on and off, we will have those soon enough.
Click to expand...
Click to collapse
So, I tried disabling Nexus4 cores using this above method after rooting, but the cores come back online as soon as I start running any app. Is there any other workaround that needs to be done for this device. I was able to use this method successfully on my older devices though.
Has anyone had success with N4?
Four cores are never on at the same time with regular use... Two are
Sent from my Nexus 4 using xda app-developers app
comc49 said:
Is or possible to disable quad core on this phone? I can see that s3 handles everything done with dial core
Click to expand...
Click to collapse
Wow. That's like disabling one of your testicles!!!
Sent from my Nexus 4 using xda app-developers app
I have only dual core mode, check my signature. Franco Kernel
Sent from my Nexus 4 using xda premium
I know the phone isn't out yet but I'm just too curious, is it possible for a developer to get the all cores in Exynos Octa to work at the same time or is it just impossible?
I dont care if the phone explodes or doesnt work smoothly etc, I'm just asking is it possible for a developer to hack and make it work at the same time?
I doubt it that's not how big little works and its part of the architecture I.e the core. Isn't it ment to control what core does what without the OS and kernel doing anything
dethrat said:
I doubt it that's not how big little works and its part of the architecture I.e the core. Isn't it ment to control what core does what without the OS and kernel doing anything
Click to expand...
Click to collapse
Actually...I think I remember reading that linuxbozo was gonna work on it...and it is possible with proper kernel edits...and linuxbozo, well he definitely would know what he's doing...anyways that's based off what I read so it could just be a false rumor...
Sent from my HTC PH39100 using Tapatalk 2
mg2195 said:
Actually...I think I remember reading that linuxbozo was gonna work on it...and it is possible with proper kernel edits...and linuxbozo, well he definitely would know what he's doing...anyways that's based off what I read so it could just be a false rumor...
Sent from my HTC PH39100 using Tapatalk 2
Click to expand...
Click to collapse
Yes I have noticed the thread your on about and I can guarantee people will look into this.
Big.little MP is the one your thinking of where all the cores are running at the same time which I'm guessing is ARM's attempt at the laptop market.
Since this is the first implementation its likely to be big.little in its simplest form which is 4 virtual cores each one consisting of 1 a15 and 1 a7 when demand is high on the v.core the a15 is running when demand is low the a7.
The kernel scheduling probably hasn't changed.
http://en.m.wikipedia.org/wiki/Big.LITTLE#section_1
It's my educated guess of course
---------- Post added at 01:28 AM ---------- Previous post was at 01:17 AM ----------
Here's the two usage models explained.
http://www.linaro.org/linaro-blog/2011/12/15/big-little-technology-two-usage-models/
Heterogeneous Multi-Processing (HMP)
This is the other actual implemented function mode of a big.LITTLE CPU. In this case, all 8 cores can be used simultaneously by the system.
This is a vastly more complex working mechanism, and its implementation is also an order of magnitude more sophisticated. It requires the kernel scheduler to actually be aware of the differentiation of between the A7 and A15 cores. Currently, the Linux kernel is not capable of doing this and treats all CPUs as equals. This is a problem since we do not want to use the A15 cores when a task can simply me processed on an A7 core with a much lower power cost.
The Linaro working-group already finished the first implementation of the HMP design as a series of patches to be applied against the Linux 3.8 kernel. What they did is to make the scheduler smart enough to be able to track the load of single process entities, and with that information to schedule the threads smartly on either the A7 cores or the A15 cores. This achieves much lower latency in terms of switching workloads, or better said, switching the environments (CPUs) to the respective work-loads, and exposes the full processing capabilities of the silicon as all cores can be used at once.
You can follow the advancements of this in the publications of the Linaro Connect summits that happen every few months. The code was only published in the middle of February this year for the first working implementation equivalent in power consumption to the IKS.
Misconception #6: Yes the CPU is a true 8-core processor. It's just not being used a such in its initial software implementations
SOURCE-> http://forum.xda-developers.com/showthread.php?t=2191850
Uh... I read somewhere that android cannot differentiate between the two core clusters and therefore HMP is pretty much unusable for now? Correct me I'm wrong.
Sent from my Xperia Arc S using xda premium
1337RYoN said:
Uh... I read somewhere that android cannot differentiate between the two core clusters and therefore HMP is pretty much unusable for now? Correct me I'm wrong.
Sent from my Xperia Arc S using xda premium
Click to expand...
Click to collapse
Yes you are right. For now it's not available, they're still working on it.
is there much use in this because there is almost no performance coming out of the A7 while the A15 is on and is it possible for an app to use an Arm A7 along with an Arm A15 at the same time ??
http://www.ubergizmo.com/wp-content/uploads/2013/01/ARM-Big-LITTLE-03.jpg <-- performance
http://www.ubergizmo.com/wp-content/uploads/2013/01/ARM-Big-LITTLE-01.jpg <-- app support
Which processow will be better, Exynos 5 Octa or A simple Snapdragon 600 quad?
In my POV, Octa will be useless since it will be a battery hog and no apps really use that much cores and power. The S600 will be more efficient for day-to-day use since it consumes less power and will actually be used.
-.-.-.-.-.-.-.-.-
Sent from a dark and unknown place
Galaxy Tab 2 7.0 P3100
I thought the s4 had the same processor as the One, but it was clocked to 1.9? I could be wrong. I wasn't really paying attention.
Sent from my HTC One using Tapatalk 2
I'd imagine this thread will get closed.
In the meantime, read this thread and then make a judgement because the "it uses more power so it sucks" mentality is just simply incorrect.
[Info] Exynos Octa and why you need to stop the drama about the 8 cores
AndreiLux said:
Misconception #1: Samsung didn't design this, ARM did. This is not some stupid marketing gimmick.
Misconception #2: You DON'T need to have all 8 cores online, actually, only maximum 4 cores will ever be online at the same time.
Misconception #3: If the workload is thread-light, just as we did hot-plugging on previous CPUs, big.LITTLE pairs will simply remain offline under such light loads. There is no wasted power with power-gating.
Misconception #4: As mentioned, each pair can switch independently of other pairs. It's not he whole cluster who switches between A15 and A7 cores. You can have only a single A15 online, together with two A7's, while the fourth pair is completely offline.
Misconception #5: The two clusters have their own frequency planes. This means A15 cores all run on one frequency while the A7 cores can be running on another. However, inside of the frequency planes, all cores run at the same frequency, meaning there is only one frequency for all cores of a type at a time.
Click to expand...
Click to collapse
Addition: I am not a Samsung fanboy by any means, however, the amount of incorrect information floating around about both of these flagships is starting to get annoying.
2nd addition: Read this as well, the big.LITTLE technology being used in the Octa is pretty amazing: big.LITTLE Processing
I hope that the overclocking or higher clock rate doesn't produce Moment-esque results.
Alsybub said:
I thought the s4 had the same processor as the One, but it was clocked to 1.9? I could be wrong. I wasn't really paying attention.
Sent from my HTC One using Tapatalk 2
Click to expand...
Click to collapse
In the US that is true, they are both S600's, with the S4 having a .2ghz higher clockspeed. Many of the other S4's will have the Octa Exynos chip.
crawlgsx said:
In the US that is true, they are both S600's, with the S4 having a .2ghz higher clockspeed. Many of the other S4's will have the Octa Exynos chip.
Click to expand...
Click to collapse
Ah. I see. Different hardware for different regions. Like the One X.
Even though it's eight cores it is probably complete overkill. Yet another bigger number to put on marketing. How many apps will actually use that? How many apps use four cores at the moment?
There have been some articles about multiple cores being more for point of sale than for the end user. Even if you're signing up for a contract right now I doubt that much would be making use of it in two years time. So, the future proofing argument is moot.
It'll be interesting to see. Of course the galaxy builds of Android will use the cores. With things like the stay awake feature and pip it is useful. Outside of the OS I can't see it being necessary.
Sent from my Transformer Prime TF201 using Tapatalk HD
The "octa" core processor is complete bullsh*t. Imo, 2/4 cores are perfectly fine as long as they optimize it and perfect the hardware, why stack 8 cores when only 4 work at one time and no app will use all that power.
They should've focused on design to make it look less like a toy phone and use better finish, instead.
Oh the marketing..
Not HTC or whatever fanboy, just stating my opinion.
rotchcrocket04 said:
I'd imagine this thread will get closed.
In the meantime, read this thread and then make a judgement because the "it uses more power so it sucks" mentality is just simply incorrect.
[Info] Exynos Octa and why you need to stop the drama about the 8 cores
Addition: I am not a Samsung fanboy by any means, however, the amount of incorrect information floating around about both of these flagships is starting to get annoying.
2nd addition: Read this as well, the big.LITTLE technology being used in the Octa is pretty amazing: big.LITTLE Processing
Click to expand...
Click to collapse
Very good read, thanks for taking the time to post it. Surprised no-one has mentioned that we need this in our Ones. Would certainly help with the battery.
Saying its a 8 core cpu is marketing simply put.
Like it has been said only 4 out of 8 cores will only ever be enabled at once max.
The GPU on the Octa might be better then the Adreno 320 but its have to wait for benchmarks.
Nekromantik said:
Saying its a 8 core cpu is marketing simply put.
Like it has been said only 4 out of 8 cores will only ever be enabled at once max.
The GPU on the Octa might be better then the Adreno 320 but its have to wait for benchmarks.
Click to expand...
Click to collapse
Benchmarks show adreno320 keeps up nicely. You won't see any real world differences besides a slightly lower benchmark score
http://forum.xda-developers.com/showthread.php?t=2191834
Sent from my ADR6425LVW using xda app-developers app
Squirrel1620 said:
Benchmarks show adreno320 keeps up nicely. You won't see any real world differences besides a slightly lower benchmark score
http://forum.xda-developers.com/showthread.php?t=2191834
Sent from my ADR6425LVW using xda app-developers app
Click to expand...
Click to collapse
Those are from the S600 version.
Higher clock speed and Android 4.2 will mean its slightly ahead.
No benchmarks from the Octa version yet.
Nekromantik said:
Those are from the S600 version.
Higher clock speed and Android 4.2 will mean its slightly ahead.
No benchmarks from the Octa version yet.
Click to expand...
Click to collapse
I'll just stick with the one and wait for the 4.2 update. By then we should have custom kernels to overclock ourselves
Sent from my ADR6425LVW using xda app-developers app
Here you go
Nekromantik said:
Saying its a 8 core cpu is marketing simply put.
Like it has been said only 4 out of 8 cores will only ever be enabled at once max.
The GPU on the Octa might be better then the Adreno 320 but its have to wait for benchmarks.
Click to expand...
Click to collapse
"Octa" is not gimmicky or for marketing.
Octa is the name of the SoC, and how it was named is nothing wrong
There are 3 implementations can be used, and one with maximum 8 cores running at the same time.
GS4 doesn't use that impletations, but it does not mean the SoC cannot be "Octa". You have a house with 8 rooms but you know to open or you wanna open 4 rooms only, the house is still an 8-room house.
hung2900 said:
"Octa" is not gimmicky or for marketing.
Octa is the name of the SoC, and how it was named is nothing wrong
There are 3 implementations can be used, and one with maximum 8 cores running at the same time.
GS4 doesn't use that impletations, but it does not mean the SoC cannot be "Octa". You have a house with 8 rooms but you know to open or you wanna open 4 rooms only, the house is still an 8-room house.
Click to expand...
Click to collapse
How do you know all 8 can run at the same time? Has Samsung demonstrated that already? Any links?
Also what would be the speed if all 8 are running at the same time?
Also did you see that an Intel dual core @2GHz beat the Exynos Octa in benchmarks!!! So all 8 cores running at slower speed might not be very good actually. It might even slow down things even more...
We recently demonstrated a dual core running at 3GHz at MWC in Barcelona. That chip was able to load games at crazy speeds. A game that took 15s to load on existing Exynos Quad core was loading in just 6s with our chip!
joslicx said:
We recently demonstrated a dual core running at 3GHz at MWC in Barcelona. That chip was able to load games at crazy speeds. A game that took 15s to load on existing Exynos Quad core was loading in just 6s with our chip!
Click to expand...
Click to collapse
. And used 3 times the energy to do it... Was that tested at all?
backfromthestorm said:
. And used 3 times the energy to do it... Was that tested at all?
Click to expand...
Click to collapse
Its all about bragging rights really. Same as Samsung is doing with regards to Octa.
The the chip that could run at 3GHz could also very well run at 1GHz at just 0.6V (so consuming far lesser power than anything else in the market). A dual core at 1GHz is still good enough for all mundane tasks like playing videos or internet browsing etc. So in practice it would have been a very efficient solution. It was a real innovation really. Sadly the company did not have money to pour more funds into the program and has shut it.
It was demonstrated at Mobile World Congress in Barcelona in february this year.
Anyway point is, we did not need extra set of power efficient cores like Samsung is doing. We ran the same cores that could do crazy high speeds and even crazier power efficient mode! Thats a very neat solution.
Heres a press link: http://www.itproportal.com/2013/02/25/mwc-2013-exclusive-dual-core-st-ericsson-novathor-l8580-soc-crushes-competition-benchmarks/
To quote the article:
A continuous running test monitored by an infra-red reader showed that the 3GHz prototype smartphone remained cooler as it uses less energy and in some scenarios, it could add up to five hours battery life in a normal usage scenario
Click to expand...
Click to collapse
hung2900 said:
"Octa" is not gimmicky or for marketing.
Octa is the name of the SoC, and how it was named is nothing wrong
There are 3 implementations can be used, and one with maximum 8 cores running at the same time.
GS4 doesn't use that impletations, but it does not mean the SoC cannot be "Octa". You have a house with 8 rooms but you know to open or you wanna open 4 rooms only, the house is still an 8-room house.
Click to expand...
Click to collapse
Actually, no. At least not in my opinion. Octacore means 8 cpu cores on one cpu-chip.
I would see it like this:
You have 2 houses on your lawn which are beside each other. Every house has 4 rooms. You have to switch houses to open up the rooms. Just like the Exynos "Octa" has to, since it cannot run both CPU's at the same time.
If you are in a house with 8 rooms, you cannot simply be in all 8 rooms at once. You can connect the open doors between all the rooms, and since your in that house, you can freely walk in every room. But not with that implementation.
I wouldn't call the Exynos "Octa" an Octacore, its a dual CPU system with a 2x4 cores, with the difference that regular desktop dual CPU systems can use both CPU units at once, but not like the Exynos "Octa". Still, dual quad system comes closer than a pure octacore system.
This is kind of a hybrid. Nice technology for a mobile device, but at the same time, kind of unneeded / inefficient, compared to regular quadcore systems. Even the Tegra 3 system with 4 active cores and 1 companion core for standby tasks seems more efficient (in terms of "used space" and ressources).
Ah well let's see how the supposed and so called "octacore" will score in the future...
processor differences
okay I know both processor are snapdragon 600's but why is the galaxy S4's processor clocked at 1.9 ghz and the HTC One's processor is clocked at 1.7 ghz is it just an instance of samsung overclocking the s600 or are they different variations of the same processor, I have done some research and am able to find no clear answer to this question even on the snapdragon website????????
dawg00201 said:
okay I know both processor are snapdragon 600's but why is the galaxy S4's processor clocked at 1.9 ghz and the HTC One's processor is clocked at 1.7 ghz is it just an instance of samsung overclocking the s600 or are they different variations of the same processor, I have done some research and am able to find no clear answer to this question even on the snapdragon website????????
Click to expand...
Click to collapse
They should be identical. I think its just a manufacturer choice. But it could also be associated to termals or battery.
Cause Samsung took the higher frequency chips, there is the possibility that they also get the "better" chips: Lower Voltage for the same frequency. But thats just an assumption.
Post on Gsmarena:
"The motherboard has a Qualcomm Snapdragon S4 APQ8064-1AA chipset, which as it turns out is a downclocked Snapdragon 600 chipset – four Krait 300 cores (rather than Krait 200) at 1.5Ghz and Adreno 320. There are also four Elpida 512MB RAM chips, SK Hynix 16GB eMMC storage, a Wi-Fi a/b/g/b and BT4.0 capable Qualcomm chip and an Analogix SlimPort transmitter."
PS: Sorry if this piece of info was clarified somewhere else in the forums, I did not found it.
Yes it is a downclocked s600 which comes with krait 300 and lpddr3 ram.
Sent from my HTC One X using xda app-developers app
Yeah, this is a fairly good explanation of why these things are so battery efficient and smooth.
Anybody excited to kick this baby up to stock speed and see how she flies
Sent from my Nexus 4 using Tapatalk 4 Beta
swagstr said:
Anybody excited to kick this baby up to stock speed and see how she flies
Sent from my Nexus 4 using Tapatalk 4 Beta
Click to expand...
Click to collapse
It's not exactly a 1.9GHz SD600 (APQ8064T, APQ8064AB) downclocked, but a Krait 300 variant (APQ8064-1AA) that is intended to run at 1.5GHz, so overclocking I'd imagine would come with plenty of throttling and battery consumption.
It really is the perfect HW for current generational need, it's not like we can do pro-grade stuff that needs Core i5 power, so it's best using the stock clock which is well balanced between performance and battery life.
Good suff
Sent from Nexus 7 FHD from XDA Premium HD
BoneXDA said:
It's not exactly a 1.9GHz SD600 (APQ8064T, APQ8064AB) downclocked, but a Krait 300 variant (APQ8064-1AA) that is intended to run at 1.5GHz, so overclocking I'd imagine would come with plenty of throttling and battery consumption.
It really is the perfect HW for current generational need, it's not like we can do pro-grade stuff that needs Core i5 power, so it's best using the stock clock which is well balanced between performance and battery life.
Click to expand...
Click to collapse
I read it was a 1.7Ghz model... Must have been misinformed. She's a beast nonetheless.
Sent from my Nexus 4 using Tapatalk 4 Beta
swagstr said:
I read it was a 1.7Ghz model... Must have been misinformed. She's a beast nonetheless.
Sent from my Nexus 4 using Tapatalk 4 Beta
Click to expand...
Click to collapse
I can't imagine overclocking to 1.7 would drain anymore than a percent or 2 of total battery consumption. With the current setup it looks like it can even be done with the same voltage settings to me.
Info from my Nex7
Sent from my Nexus 7 using Xparent Green Tapatalk 2
conan1600 said:
I can't imagine overclocking to 1.7 would drain anymore than a percent or 2 of total battery consumption. With the current setup it looks like it can even be done with the same voltage settings to me.
Click to expand...
Click to collapse
I mean, I'm not the type to OC obsessively. I mean, underclock = better battery... But if we could bump up to "stock" it prob wouldn't be that bug of a difference. BUT apparently this model of the S600 is supposed to run at 1.5. I'll probably keep it there.
Sent from my Nexus 4 using Tapatalk 4 Beta
On Wikipedia it says that the APQ8064-1AA has a way faster memory speed than the S600 in the HTC One (1600MHz DDR3L 12.8 GB/sec vs. 533MHz LPDDR3 8.5 GB/sec).
I don't know if I can trust it, but...
swagstr said:
I mean, I'm not the type to OC obsessively. I mean, underclock = better battery... But if we could bump up to "stock" it prob wouldn't be that bug of a difference. BUT apparently this model of the S600 is supposed to run at 1.5. I'll probably keep it there.
Sent from my Nexus 4 using Tapatalk 4 Beta
Click to expand...
Click to collapse
Underclocking doesn't necessarily lead to a better battery life. It depends on the efficiency at the actual frequency. If you underclock, the chip needs less current but needs more time to finish the work load because it is slower. So what matters is total energy consumption: W = U * I * t (Voltage * Current * time). So to save energy, the current has to decrease more than the time increases for a given workload. Also we can see that decreasing the voltage (undervolting) also saves energy (in this case we don't loos calculation speed because the frequencies are untouched)
Right, I cannot make my mind up so I thought I would come on here, il make it short.
Which has better performance - Snapdragon 800 OR Exynos 5420
I don't give a flying f*** about 4G or 4K. Which one has better performance i.e which is faster?
hayat55 said:
Right, I cannot make my mind up so I thought I would come on here, il make it short.
Which has better performance - Snapdragon 800 OR Exynos 5420
I don't give a flying f*** about 4G or 4K. Which one has better performance i.e which is faster?
Click to expand...
Click to collapse
I would say the Snapdragon 800 because more devs would get it= more roms, better clock speed, better battery life because of chipset enhancements, faster charging because of chipset enhancements. If none of those matter to you get the Exynos version.
Sent from my SPH-L720 using XDA Premium 4 mobile app
hayat55 said:
Right, I cannot make my mind up so I thought I would come on here, il make it short.
Which has better performance - Snapdragon 800 OR Exynos 5420
I don't give a flying f*** about 4G or 4K. Which one has better performance i.e which is faster?
Click to expand...
Click to collapse
Define performance.
Then we talk. My definition of performance is much different from that of my neighbour.
Dont you think you are showing too much attitude? How hard is it to say please? And snapdragon and exynos benchmarks are about the same
XDA HellHound said:
Dont you think you are showing too much attitude? How hard is it to say please? And snapdragon and exynos benchmarks are about the same
Click to expand...
Click to collapse
To be technical, it seems that Exynos benchmarks are slightly higher. However, I believe that is without the HMP update. With that, scores will skyrocket.
I can't make my mind up whether to get snapdragon 800 version or exynos 5420. By performance i mean which can do more multitasking and which can run apps faster etc
From what I've seen the scores are indeed about the same on the benchmark front. They will both be good! I'm guessing the s800 will get more dev support and probably cm. It will all be your choice, do you want lte or not.
Sent from my GT-I9505 using XDA Premium 4 mobile app
Sammath said:
From what I've seen the scores are indeed about the same on the benchmark front. They will both be good! I'm guessing the s800 will get more dev support and probably cm. It will all be your choice, do you want lte or not.
Sent from my GT-I9505 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
One thing that pushes me towards the exynos is that it has 1866 ram speed whereas snapdragon only has 800
Which do you think will be better in the long run?
^^^ forgot to mention that because exynos has higher ram speed then that means quicker performance.
So, which one should I get? Will there really be any difference between the performance of exynos 5420 and snapdragon 800?
You really do seem to have an attitude in your posts. Anyways, the phone isn't out yet so all anybody has is benchmarks to go by. Not a lot of real world use reviews out there to compare the two.
Sent from my Galaxy Nexus using Tapatalk 4
I guess the ram speed can be neglected in real life usage. The s4 with the s600 feels the same as the octa version to me. And that is while the octa s4 obliterated the s600 in Antutu and some other Benchmarks. Like I've said before, if you want lte and better rom support get the s800 one. If you're really spec whoring get a 8 core exynos.
Anyways, from what I've seen so far the s800 seems to be faster in Antutu but not that much so I guess they will be at the same level of performance.
I would get any device I could get which for me is the s800 since I'm from the Netherlands.
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S800
LTE
Better support
Benchmark mean absolutely nothing and are a terrible way if measuring a phone. I've seen plenty if phones have high numbers but real world experience sucked.
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Easy. Snapdragon since there will be much more support for it from developers.
Also, don't forget, the 8-core is a lie
You have your normal 4-cores with an additional 4 'smaller' cores to handle always running less intense things. I really don't see the advantage to this, you don't get more out of benchmarks because those 4 'smaller' cores won't be used, except by some obscure background task that wouldn't slow down the benchmark anyways. It also won't help with the battery life, no matter how you spin it a clock cycle is a clock cycle.
The only time you will see gains from small memory speed increases are in things like calculating pie, so again, useless for day-to-day stuff. As other have stated, support. Qualcomm based will get AOSP based roms without any problems.
If you are looking to flaunt your meaningless bigger numbers around, by all means, get the 8-core.
designgears said:
Also, don't forget, the 8-core is a lie
You have your normal 4-cores with an additional 4 'smaller' cores to handle always running less intense things. I really don't see the advantage to this, you don't get more out of benchmarks because those 4 'smaller' cores won't be used, except by some obscure background task that wouldn't slow down the benchmark anyways. It also won't help with the battery life, no matter how you spin it a clock cycle is a clock cycle.
The only time you will see gains from small memory speed increases are in things like calculating pie, so again, useless for day-to-day stuff. As other have stated, support. Qualcomm based will get AOSP based roms without any problems.
If you are looking to flaunt your meaningless bigger numbers around, by all means, get the 8-core.
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Not true anymore. They are releasing an update to run all 8 cores at the same time to make it a true octacore
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kiter86 said:
Not true anymore. They are releasing an update to run all 8 cores at the same time to make it a true octacore
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Source? Cause idk about that....
kiter86 said:
Not true anymore. They are releasing an update to run all 8 cores at the same time to make it a true octacore
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I thought they were. Wasn't it something like a Heterogeneous or HMP update.
SgtGoldy said:
Source? Cause idk about that....
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was news a few weeks ago.......
http://www.phonearena.com/news/Sams...-update-to-become-true-octa-core-chip_id47353
http://www.androidpolice.com/2013/0...a-software-new-hardware-not-needed-after-all/
kiter86 said:
Not true anymore. They are releasing an update to run all 8 cores at the same time to make it a true octacore
Sent from my Xoom using Tapatalk 4
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It can't be a true 8-core. The extra 4 cores are far less powerful then the other 4.
designgears said:
It can't be a true 8-core. The extra 4 cores are far less powerful then the other 4.
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Let me tell you some preludes:
The reason behind using 8 cores was to put in a pair of four aggressively powerful quad processors like the cortex A15 with another pair of less powerful yet more power efficient four quad processors like cortex A7.
This is the main intention behind putting all these 8 cores of ARM's big.little architecture. The purpose is to let the A15s handle power hungry tasks like web page opening, playing an asphalt 8 game etc while the a7s would handle "simple" tasks. This is more vividly demoed in this video:
http://www.youtube.com/watch?v=Zwbeb08W27U
Now, the way you are saying it is not a true 8 core processor as if you are
1. demanding 8 cortex A15 processors using 28 nm technology.
Do you know/have any idea what could happen if they all be available online at the same time in this case?
or
2. you knew there was a "true" octa core processor in the world, to be (or already) implemented in another device. IF SO, point us to that device and also explain what is the ideal to call a processor true 8 core.
It was never an intention of ARM to put eight A15s (for example) available for heterogeneous multi-processing.
Go here. Again 64 bit A57s are to be paired with 32 bit A52s.
Even the S4 equipped with exynos 5410 is an octa core processor device. It is just that the bloody CCI (cache coherence interconnector, CCI400) was crippled to enable all the 8 cores available online. Once the 8 cores packed in a SoC like this it is an octa core processor device. Whether or not you like it to call true 8 core.
Samsung/ARM worked on this and released another SoC (in the form of upgraded exynos) which has a working CCI that is free from the above mentioned flaw(s) which will have Cluster Migration by default and will receive the update that is made from Linaro team to enable all the 8 cores available online and therefore will become a "TRULY WORKING" 8 core processor which is implemented in Note 3.
These are facts, these have been heavily discussed in the general section of Samsung Galaxy S4 forums.
Oh, another thing- just because all these 8 cores are made to be available online it does not mean all the 8 cores will be working Simultaneously regardless of what application is in the process. Depending on the needs of the app(s) all these 8 cores (ranging from 1 core to the extreme case- 8 cores) can be used. If an app needs 4 cores, they can be used. If it needs 6 cores then they can be used. If it needs 8 cores then they can be used.
I personally am curious to see how it be going when all the 8 cores were used for an app.
And to the OP who's demadning a straight answer, my thoughts:
we do not know anything atm how power efficient and cool it'd be to have the HMP doing all these tasks. This requires
real life buyers buy the device
start playing with it
see how hot the device becomes (compared to another exynos device like s4).
It actually depends on those stuffs. You demand the answer as if we all knew from the beginning how exynos 5420 gonna perform in real life.