UHS support for sd card - ZTE Axon 7 Questions & Answers

Does the SD card slot on the Axon 7 use UHS? U1 or U3?
For some reason I can't find a good answer with google. Maybe because it doesn't?

It will still work. You just might not get full speed.
I wouldn't buy anything other than a 128gb UHS card today for a phone. Even if not fully supported in my current phone. It will be in the next phone.

Bro, I tested my friend's Sandisk Extreme plus v30 on the Axon 7 and it performed better on Axon than the S7 edge
(This Microsd card is hella fast btw, it is the fastest for random Iops, even faster than uhs-II for random and the 2nd fastest for sequential) I tested it with Androbench and the read speeds were like 85-90 and the writes were 60-70 (I am talking megabytes per seconds!) and with other benchmarks that are lighter, it passes 100 on sequential read and 70 on write. So it definitely has Uhs-I u3 support since v30 is a higher rating since it has better random iops and designed for 4k recording, my extreme v30 is less impressive than the plus though =)
Speed may vary when flashing, I didn't flash anything because the card is not mine >_> but on my sandisk extreme v30 it can backup 435MB worth of data in 10 seconds

Related

SD Card benchmarks

Hi guys,
I'm curious about the speed of the bundled microSDHC card. I just benchmarked it with SD Tools and consistently get around 6-8MB/s writes and around 17MB/s reads, and the label says Class 2 so it's performing way faster than rated (more like a Class 6). I'm running jt's CM7 Alpha 3 if that makes any difference.
I'd appreciate it if people would post benchmarks of their bundled cards or any other SD cards that they've bought for comparison. Thanks!
Edit: 8MB/s writes also reported by Antutu System Benchmark, so it might not be a fluke. Also, when transferring files via USB I'm getting 7.5MB/s too. This is crazy! I'm actually looking at getting a cheap 32GB Class 4 card tomorrow but it seems like it'll probably be slower... Although class rating is just a minimum write speed, I doubt most cards have such fast write speeds, especially when they're marked Class 2.
Write: 7.7
Read: 28.9 / 21.2
Pretty impressive for a class 2.
Sent from my SCH-I500 using XDA App
Though I have a 32 class 4, the card that came with the phone consistently transferred just as fast, if not faster, than it. I was always impressed by it.
I too ended up buying my own class 4, but not because the SD card that came with the phone was slow, as you guys know, it is quite fast. My problem was I was burning through them. I burned through three in about three months and they got sick of giving me new ones...lol. Class 4 now for about 2 months, and not a problem, and honestly about the same speed, so it seems.

Does Shield TV has UHS-II reader?

I search around website but couldn't find the specific specs for the micro sd card reader for Shield TV. Does it support UHS-II? I am planning to purchase the Lexar 1800x and want to make sure if I can take full advantage of that card which support read speed up to 300MB/S. I'm also wondering about the writing and reading speed of original storage on 16GB version.
Nvm I contacted Nvidia support, only support UHS-I class 3.
emptydream said:
Nvm I contacted Nvidia support, only support UHS-I class 3.
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by chance, did you ask what the maximum read/write speeds were for on the microsd slot?
unvaluablespace said:
by chance, did you ask what the maximum read/write speeds were for on the microsd slot?
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I assume all the card reader of UHS-1 class3 should have same limit...based on the wiki the limit for that is 104 MByte/s.
I did some further research and seems like random writing and reading speed is actually more important than sequence speed. However, the review on amazon shows Samsung pro plus is best on both random and sequence speed so I guess I will just go with that for now. Laxer is actually only good at reading speed.
http://www.storagereview.com/samsung_evo_plus_microsd_memory_card_review
Based on this one ....San disk is better? I'm confused...
emptydream said:
Based on this one ....San disk is better? I'm confused...
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thats a pretty misleading article, there compairing a 128gb evo plus to other various sized cards. from what ive seen (so far) all premium 128gb cards have relatively low write speeds vs their smaller counterparts.
lexar's generally have the best sequential read/write speed, samsung's usually are better with random read/write, and sandisk is definitely solid too.
for example
lexar 64gb 633x sequential read/write 93.36 / 48.09 MB/s
lexar 128gb 633x sequential read/write 73.17 / 22.16 MB/s
results are basically the same for other manufacturers.
trevor112358 said:
thats a pretty misleading article, there compairing a 128gb evo plus to other various sized cards. from what ive seen (so far) all premium 128gb cards have relatively low write speeds vs their smaller counterparts.
lexar's generally have the best sequential read/write speed, samsung's usually are better with random read/write, and sandisk is definitely solid too.
for example
lexar 64gb 633x sequential read/write 93.36 / 48.09 MB/s
lexar 128gb 633x sequential read/write 73.17 / 22.16 MB/s
results are basically the same for other manufacturers.
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I see, I ordered samsung 64gb pro plus... Hope it will be good~
emptydream said:
I see, I ordered samsung 64gb pro plus... Hope it will be good~
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Definitely a fast card read/write was a bit faster than 80/40 MB/s iirc.
I haven't ran any legit benchmarks on shield yet, but regardless of the sd card i haven't really seen write speeds over 12-15 MB/s while transferring from internal to sd with file managers, ES specifically.
So im thinking internal storage isn't particularly fast, just like on the shield tablet. If i get bored I'll run some tests and see what I come up with
I haven't found a device that's not a camera that support this format yet.
^^ yeah pretty much. even if they call it out. real world speeds dont seem to get there. outside of HD cameras
The microsd reader is UHS-I so you will spend money for nothing. No matter how fast the external storage is you still depend on the speed of the internal storage which is gong to be the bottleneck when you run the OS and apps. 4K video needs 25Mbps and UHS-I can deliver easily. Same story if you read from USB 3 ports. I don't know the speed of the internal storage but it should be at the commercial level of the beginning of 2015.
emptydream said:
I search around website but couldn't find the specific specs for the micro sd card reader for Shield TV. Does it support UHS-II? I am planning to purchase the Lexar 1800x and want to make sure if I can take full advantage of that card which support read speed up to 300MB/S. I'm also wondering about the writing and reading speed of original storage on 16GB version.
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emptydream said:
I see, I ordered samsung 64gb pro plus... Hope it will be good~
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Click to collapse
What's your read/write speed with the pro plus? I got the same, I get 60~ r/w.
I ordered 500gb version...I did get the card for my phone lol but like 40s speed sad

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

Which MicroSD Card for my "not yet here" but soon S7 Edge?

I've read that with Samsung Phones, Samsung SD cards work perfectly with.
but which one? Samsung Pro Plus or Evo Plus? is there any limitations on what SD card I can put on the s7?
Evo Plus has Read: 80MB/s Write: 20MB/s
Pro Plus has Read: 95MB/s Write: 90MB/s
Price doesnt matter.
thanks
I just bought a pny elite performance card from pcworld. £39.99 tested at 68MB/s read 52MB/s write in the s7. Will do for now!
Samsung Pro Plus is one of the fastest card out. Last week Samsung had the 64GB for $35. I'm waiting on for that price. No rush for me to get one.
Samsung Pro Plus or you can get the 128GB Lexar 1800x that has fast UHS-I speed like the Samsung yet also has support for UHS-II for *much faster* speed when using the card with external USB3 for transferring files. Am using the Lexar 1800x INSIDE the phone and transferred many GBs of files fast. Naturally if I used the card outside the phone environment (read: in the USB 3.0 adapter) it would have been about 2x to 3x faster. The Lexar 1800x is the fastest card out there right now, will handle the next gen when phone support UHS-II, and... if you're like me and have the need for speed
They also make a 64GB version.
http://www.amazon.com/gp/product/B0...as2&tag=enjoythemusic&linkId=LSJ7BGJMEO47OI3C
enjoythemusic said:
Samsung Pro Plus or you can get the 128GB Lexar 1800x that has fast UHS-I speed like the Samsung yet also has support for UHS-II for *much faster* speed when using the card with external USB3 for transferring files. Am using the Lexar 1800x INSIDE the phone and transferred many GBs of files fast. Naturally if I used the card outside the phone environment (read: in the USB 3.0 adapter) it would have been about 2x to 3x faster. The Lexar 1800x is the fastest card out there right now, will handle the next gen when phone support UHS-II, and... if you're like me and have the need for speed
They also make a 64GB version.
http://www.amazon.com/gp/product/B0...as2&tag=enjoythemusic&linkId=LSJ7BGJMEO47OI3C
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Click to collapse
Awesome can you post your read write speeds? I was considering this card. It was this or the new Sandisk with UHS-II.
enjoythemusic said:
Samsung Pro Plus or you can get the 128GB Lexar 1800x that has fast UHS-I speed like the Samsung yet also has support for UHS-II for *much faster* speed when using the card with external USB3 for transferring files. Am using the Lexar 1800x INSIDE the phone and transferred many GBs of files fast. Naturally if I used the card outside the phone environment (read: in the USB 3.0 adapter) it would have been about 2x to 3x faster. The Lexar 1800x is the fastest card out there right now, will handle the next gen when phone support UHS-II, and... if you're like me and have the need for speed
They also make a 64GB version.
http://www.amazon.com/gp/product/B0...as2&tag=enjoythemusic&linkId=LSJ7BGJMEO47OI3C
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wowzah, too out of budget lol. but a nice SD card. I was thinking of $40-$60 AUD.
ekjl said:
Awesome can you post your read write speeds? I was considering this card. It was this or the new Sandisk with UHS-II.
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A site says, "The Lexar 1800x microSD card was tested in several UHS-I and UHS-II card readers. In UHS-II card readers the 1800x microSD card reached 272.3 MB/s sequential read speed, just passing its 270MB/s quoted read speed. Sequential write speed measured 222.2 MB/s, slightly less than the 245 MB/s rating. In UHS-I card readers, the 1800x card reverted to UHS-I mode and was limited to 96.5 MB/s read and 77.5 MB/s write speeds. Still fast, but not quite as fast as the fastest UHS-I microSD cards." Have not tested it in the phone yet it seems very fast.
Here's another site review diff than the one above http://www.realhardwarereviews.com/lexar1800x/7/
---------- Post added at 10:45 AM ---------- Previous post was at 10:40 AM ----------
PS: If you never see yourself using UHS-II and just keeping the card in the phone then the Samsung card is probably best bang for buck. I move some big files around (pro video and pro audio both in pure lossless) so being able to use the card via USB 3.0 makes life easier plus the next gen of phones might support UHS-II and thus I can keep the existing data on card and not have to data migrate.
enjoythemusic said:
A site says, "The Lexar 1800x microSD card was tested in several UHS-I and UHS-II card readers. In UHS-II card readers the 1800x microSD card reached 272.3 MB/s sequential read speed, just passing its 270MB/s quoted read speed. Sequential write speed measured 222.2 MB/s, slightly less than the 245 MB/s rating. In UHS-I card readers, the 1800x card reverted to UHS-I mode and was limited to 96.5 MB/s read and 77.5 MB/s write speeds. Still fast, but not quite as fast as the fastest UHS-I microSD cards." Have not tested it in the phone yet it seems very fast.
Here's another site review diff than the one above http://www.realhardwarereviews.com/lexar1800x/7/
---------- Post added at 10:45 AM ---------- Previous post was at 10:40 AM ----------
PS: If you never see yourself using UHS-II and just keeping the card in the phone then the Samsung card is probably best bang for buck. I move some big files around (pro video and pro audio both in pure lossless) so being able to use the card via USB 3.0 makes life easier plus the next gen of phones might support UHS-II and thus I can keep the existing data on card and not have to data migrate.
Click to expand...
Click to collapse
I actually want to know what kind of speed the S7 gets with this card in it. From some other post I read someone was saying the reader in the S7 is not that great.
I did a test and it was around 70 read and 60 write. Seems the bottleneck might be the phone as saw another test with the SanDisk Extreme Pro on XDA and it was about the same speeds. Keep in mind that, for me, Lexar 1800x will also be used outside the phone environment so the UHS-II will be very useful. YMMV.
What happens when you insert an 256GB Sd
Officially Samsung says we can expand upto 200GB of external storage but unless Samsung intends to make 200GB Sd card, there aren't any of those kinds in the market. i want to take full advantage of the expandable memory but 126Gb won't be enough so your opinions would help greatly. Can pop in a 256Gb Sd card
So I went and bought the Samsung Pro Plus 32GB. hopefully comes here before my S7 Edge
Good choice of card. I have always used Samsung cards with no problems. Got my Edge yesterday. I've had a bunch of phones, including the latest Iphones and this tops them all easily. Enjoy.
This is all being discussed over in the accessories forum, we should probably continue the discussion over there...
http://forum.xda-developers.com/s7-edge/accessories/suggestions-microsd-t3321569

Fastest MicroSD Card?

I need a 512gb MicroSD card. What's the fastest?
I'm using this one. Works well.
https://forum.xda-developers.com/galaxy-note-10+/accessories/memory-upgrade-time-t4155549
There are V60 cards but they're more expensive and not sure the 10+ would fully support the throughput.
Sandisk and Samsung make those two.
I like Lexar, used them for 15 years with no failures.
I'm using this Sandisk Extreme Its U3, V30, A2. Seems to work well.... https://smile.amazon.com/gp/product/B07FCQRN9K/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
Previously I was also using a Samsung EVO Select 256GB. While labled U3, its not marked V30 or A anything... But it was still fine for 4K video recording.
https://smile.amazon.com/gp/product/B0887P21Z2/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1
I am using this. I have always used this brand
"Strontium Nitro A1 256GB Micro SDXC Memory Card 100MB/s A1 UHS-I U3 Class 10 with High Speed Adapter for Smartphones Tablets Drones Action Cams (SRN256GTFU3A1A)"
Still not sure what the max internal transfer bandwidth is.
Not speced out anywhere I can find.
I'm seeing about 1.5-2 gb @minute internal transfer rates.
My music 220 gb db is on the SD card... runs flawlessly.

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