How's the SD card speed? - Sony Xperia XZ2 Premium Questions & Answers

Would someone with an an XZ2 Premium please run a storage speed test on the Micro SD card slot? The XZ2 is apparently gimped compared to last year's XZ1. Which is a real shame.

SD speeds seem pretty bad.
Using A1 SD Bench, running the "accurate w/reboot" test, it achieved only 19.26MB/s read and 21.52MB/s write.
This was with the latest Samsung EVO 128GB U3 card capable of near 100MB/s reads and almost 90MB/s writes as tested on my PC using USB3 (https://www.amazon.com/gp/product/B06XWZWYVP).
Dismal.

jaytee23 said:
SD speeds seem pretty bad.
Using A1 SD Bench, running the "accurate w/reboot" test, it achieved only 19.26MB/s read and 21.52MB/s write.
This was with the latest Samsung EVO 128GB U3 card capable of near 100MB/s reads and almost 90MB/s writes as tested on my PC using USB3 (https://www.amazon.com/gp/product/B06XWZWYVP).
Dismal.
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Same for me, I also checked my EVO Plus U3 Card on my PC and it was fine, so there does seem to be an issue, the internal memory speed is insanely fast

Geoffxx said:
Same for me, I also checked my EVO Plus U3 Card on my PC and it was fine, so there does seem to be an issue, the internal memory speed is insanely fast
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There's an issue, alright. The issue is that they implemented a pathetic SD card subsystem in an expensive, super-premium phone. It's no wonder that it took so long to generate thumbnails for the photos I transferred over - the SD card read speed (and write speed) is thoroughly gimped.

Related

SD Ultra card

Can we use the Sandisk 'Ultra' line? If yes, does anybody know if the faster transfer rate of the Ultra card is supported by the XDA?
try using pocketmecanics it got a benchmark tool
and that seem to show that
the xda2 at least use the pretty slow intel xcale internal sd interface
making the xda1 faster when it comes to sd speed
with mechanics you can compare your result with a list of pda's with different sd cards
non of them ever reach ultra speeds
heck they dont even reach the max speed of normal sd cards
if you compare the speed with the same card in a SD card reader
but that dont mean there is not difference in speed
like Sandisk is the slowest thing ever
I'm using a Panasonic 512MB SD Card and it's supposedly faster (and better) than the SanDisk Ultra.
YMMV

Micro SD benchmark.

I just wanted to share some of the information i found.
I'm currently using Micro SD from Sandisk called Sandisk Extreme. The card have speed of 60mb/s Read and 40 mb/s Write. I used an app called A1 SD bench to test the card speed on my phone.
The result I got on my Note 3 was 19-21mb/s Read and 9-14mb/s write. As you notice even though my card should have higher numbers but I think the Micro SD reader slowing it down. Now that I have the Note 4 the result is amazing. I have 59.8mb/s Read and 38mb/s write. The numbers are very close to the advertised card speed which is great.
I though I will share this information just so you know that note 4 does benefit from higher micro sd card speed.
Yathani said:
I just wanted to share some of the information i found.
I'm currently using Micro SD from Sandisk called Sandisk Extreme. The card have speed of 60mb/s Read and 40 mb/s Write. I used an app called A1 SD bench to test the card speed on my phone.
The result I got on my Note 3 was 19-21mb/s Read and 9-14mb/s write. As you notice even though my card should have higher numbers but I think the Micro SD reader slowing it down. Now that I have the Note 4 the result is amazing. I have 59.8mb/s Read and 38mb/s write. The numbers are very close to the advertised card speed which is great.
I though I will share this information just so you know that note 4 does benefit from higher micro sd card speed.
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Damn! I knew I should have bought a faster card.
Thank you for the info!

SD Card is So Freaking Slow!

I have a PNY U3 Turbo Performance 64GB High Speed MicroSDXC Class 10 UHS-I, up to 90MB/sec Flash Card. It seems to get slower with time. I mean it is literally taking me like 60 seconds to delete a few pictures. The card is formatted to portable storage. I only store music and photos on it. Reformatting offered no improvement. It is borderline unusable.
So, I benchmarked and found that my read speed is about 59 mb per sec and my write speed is 4.4 mb per sec. I can live with the read speed but the write speed is horrible. What gives?
How many pictures are you talking about, and how large are they?
128KB clusters?
I found trying to use 4K clusters in exfat was resulting in the same slowness. Reformatted to 128KB clusters and it flys (~20MB/s write ~70MB/read). Sandisk ultra plus 64GB.
I have this issue as well I have one of the fast Samsung cards. First few months worked great super fast but now takes a while to carry over a gig of pics and music. I also notice lag in loading and delteing photos through the phone
These are normal pics 5-6 MB. There has to be something wrong.
Irieone said:
These are normal pics 5-6 MB. There has to be something wrong.
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If you find any info/solution let us know.
Im thinking about running it through one of the tests that show the read/write speed, if its not up to par on that I will contact samsung see if its covered under their warranty.
Why not opt for a 128GB sd card? My Moto X Pure will be here Thursday. I have a 64GB in my old phone but I may get 128.
Has the OP tried backing up their data and reformatting the card?
gpz1100 said:
Has the OP tried backing up their data and reformatting the card?
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Yes, I have tried this a few times and it did not help. The write speed of this particular card is somewhere between 5 and 9 mb/sec. I have used multiple benchmarking tools that all confirm the same thing. The sad thing, if you drill down into the specifications for a lot of these new sd cards there is no mention of write- speeds. I asked a question similar to my OP on Reddit and had somebody with the same card echo my issue. Terrible write speeds. I am not in the mood to buy another card with great specs only to find it performs poorly in my phone? There is still a part of me that thinks it's hardware or software related and specific to the phone. I can't quite believe that something advertised as "turbo", UHS-1, Class 10, and 90 mb/sec has an actual write speed of 5 mb/sec. It seems criminal.
^^See my post #3. I've found this card to have very good write speeds on the phone of ~14-16 MB/s, reads around 40-50. On the pc through a usb 3 card reader I can write at the speeds posted above.
But yes, unless you drill down, the marketing and advertising doesn't list write speeds. I can see why. It all depends where you'll be using it. I'll be lucky to see sustained 10MB/s read through my dash cam (not sure what the write speed even is) even through the card is capable of 40MB/s +.
I should say, using the moto x, through MTP, I've seen read speeds upwards of 35-40MB/s, write speeds of about 7-10MB. The card is faster through twrp, backup stats indicate ~14-16MB/s.
http://forum.xda-developers.com/moto-x-style/general/micro-sd-speed-chart-t3196020

How fast is the SDcard slot compared to internal memory?

Hi, I'm currently thinking about popping an SDcard in my xplay and was wondering how fast the slot runs at?
I was thinking maybe I will be wasting my money getting the fastest card on the block if the slot speed is slower than the SD card.
Also am curious in the difference in speed of the internal memory compared to the fastest speed of the sd card.
If anyone has any info on the above would be grateful for your input.
rockyrobin said:
Hi, I'm currently thinking about popping an SDcard in my xplay and was wondering how fast the slot runs at?
I was thinking maybe I will be wasting my money getting the fastest card on the block if the slot speed is slower than the SD card.
Also am curious in the difference in speed of the internal memory compared to the fastest speed of the sd card.
If anyone has any info on the above would be grateful for your input.
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I've just borrowed an SDcard out of another phone (Samsung evo (yellow)) and benchmarked against the internal SD card and got the following scores:
External - (read) 34.36MB/s, (write) 20.0MB/s
Internal - (read) 89.76MB/s, (write) 53.35MB/s
Has anyone found an SDcard that is as fast as the internal?
rockyrobin said:
I've just borrowed an SDcard out of another phone (Samsung evo (yellow)) and benchmarked against the internal SD card and got the following scores:
External - (read) 34.36MB/s, (write) 20.0MB/s
Internal - (read) 89.76MB/s, (write) 53.35MB/s
Has anyone found an SDcard that is as fast as the internal?
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I don't think there are sdcards available with the same read/write speeds as internal. On my old moto g with LP ROM I always installed big games to my sdcard using apps2sd and the only difference i noticed was that it takes a little longer loading an app.
Sickaxis79 said:
I don't think there are sdcards available with the same read/write speeds as internal. On my old moto g with LP ROM I always installed big games to my sdcard using apps2sd and the only difference i noticed was that it takes a little longer loading an app.
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I was just looking at the benchmark results database for the "a1 SD benchmark" app and there are a few submissions that encourage me to think it may be possible with a card like the Samsung Pro series which can do around 80r/70w MB/s. Only thing that has me wondering is whether the card interface would be a bottleneck?
rockyrobin said:
I was just looking at the benchmark results database for the "a1 SD benchmark" app and there are a few submissions that encourage me to think it may be possible with a card like the Samsung Pro series which can do around 80r/70w MB/s. Only thing that has me wondering is whether the card interface would be a bottleneck?
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It also depends on the phone I guess as to how much speeds it can reach.
Automated reply by JARVIS
Just Popped a Samsung Pro card in which is rated as 90/80 and an only seeing 54/21 so am assuming the sdcard interface is neutered in some way compared to some other higher end phones.
Anyone else noticing this performance ceiling?
rockyrobin said:
Just Popped a Samsung Pro card in which is rated as 90/80 and an only seeing 54/21 so am assuming the sdcard interface is neutered in some way compared to some other higher end phones.
Anyone else noticing this performance ceiling?
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Not neutered - All SD card interfaces are slower than the actual memory built in to the phone, this is right across the board for all phones. It's a known bottle neck that's a fact of life. That is the biggest thing in favour of more memory in the actual phone. I'm not a gamer but I have a ton of apps installed on the SD card and don't find any negative impact on day to day use. That said if I could have bought a 32 or 64GB version of the Play I would have instead of the 16GB version.
Your never going to see the tested speed in the phone equal the SD card out of the phone.
Sent from my XT1563 using Tapatalk
rockyrobin said:
Just Popped a Samsung Pro card in which is rated as 90/80 and an only seeing 54/21 so am assuming the sdcard interface is neutered in some way compared to some other higher end phones.
Anyone else noticing this performance ceiling?
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Click to collapse
http://forum.xda-developers.com/moto-x-play/help/wich-sd-card-t3237228/page2

This SD card is too slow?

Whats going on here? And SD card I have tried is to slow. OK I had class 6 etc so I understand that, but went out today and bought a Samsung EVO 48MB/S UHS-I Class 10 and guess what? Its still to slow
the write speed on that card will be really slow 10MB/s maybe, you need a U3 card if you want fast writes as well as reads.
TBH i have put bog standard class 10 cards in my kids second gen Moto Gs as adopted storage and they've not moaned about the phones going slow at all.
slugger09 said:
Whats going on here? And SD card I have tried is to slow. OK I had class 6 etc so I understand that, but went out today and bought a Samsung EVO 48MB/S UHS-I Class 10 and guess what? Its still to slow
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What do you mean with to slow? You mean its not suited to use as internal memory or just slow when browsing your sdcard files?
Marshmallow tells you if it is too slow or not when you use adopted storage, i have seen the same message for U3 cards though so i personally just ignore it and crack on.
Wrong article.
Problem might not be the card but the phone memory controller itself could be a bit slow
Sent from my XT1562 using XDA-Developers mobile app

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