microSDXC UHS Speed Class 3? - HTC One A9
I want to get a microSDXC Class 10 card but does anyone know if the phone supports UHS Speed Class 3? I don't want to spend the money for UHS Speed Class 3 if the phone can only support UHS Speed Class 1. Thanks!
Good question, I bit the bullet and got a 64gb Samsung Pro Plus U3 or something, it was $39 I think, so about 15 more than a lower spec one.
Someone did a nice review of the speeds, not all are equal even for the U1
Test Results (Numbers are Sequential Read, Sequential Write, 4K Random Read, 4K Random Write in MB/s, speeds greater than 10MB/s were rounded to the whole numbers)
16 GB Alphabetically
Lexar 633x** -- 88, 25, 8.7, 1.2
Panasonic U3** -- 93, 42, 11, 0.7
Sandisk Extreme Pro -- 95, 80, 7.6, 2.6
32 GB Alphabetically
Delkin U3 -- 93, 59, 11, 0.6
Kingston 90R/80W -- 93, 58, 11, 0.6
Lexar 1000x -- 90, 57, 10, 1.4
Lexar 1000x with Bundled Reader* -- 148, 60, 10, 1.4
Patriot EP -- 90, 35, 10, 0.6
PNY Turbo Performance -- 91, 55, 6.9, 0.9
Samsung Pro gray -- 92, 82, 10, 3.6
Sandisk Extreme Pro -- 94, 87, 9, 3.0
Sony up to 95MB/s -- 91, 51, 4.8, 0.9
Transcend Ultimate 633x -- 93, 85, 8.1, 1.4
64 GB Alphabetically
Delkin U3 -- 94, 27, 13, 0.3
Kingston 90R/80W -- 94, 25, 13, 0.3
Lexar 1000x -- 92, 56, 12, 1.5
Lexar 1000x with Bundled Reader* -- 153, 66, 11, 1.7
Patriot EP -- 81, 22, 11, 0.6
PNY Turbo Performance -- 92, 54, 6.9, 0.9
Samsung black -- 82, 20, 8.8, 2.1
Samsung Pro gray -- 90, 80, 10, 3.5
Samsung Pro+ *** -- 92, 86, 10, 5.3 <== the listed product
Sandisk Extreme Plus**** -- 92, 58, 10, 2.8
Sandisk Extreme Pro - 97, 91, 10, 3.0
Sandisk Ultra ***** -- 46, 16, 7.0, 2.1
Sony up to 95MB/s -- 92, 49, 5.2, 0.9
Transcend Ultimate 633x -- 93, 83, 7.3, 1.4
128 GB Alphabetically
Lexar 633x -- 78, 28, 3.3, 1.4
Sandisk Ultra -- 92, 19, 6.4, 2.4
Fastest Sequential Read:
All tested cards were able to accomplish > 90MB/s, with the Lexar 1000x able to take advantage of UHS-II speed when using the bundled USB reader and leading the pack
Fastest Sequential Write:
Sandisk Extreme Pro, Samsung Pro+, Transcend Ultimate 633x
Fastest Random Read:
Kingston 90R/80W.
Fastest Random Write:
Samsung Pro+
Best overall:
Samsung Pro+ and Sandisk Extreme Pro
Installed and works find. Not sure how to do a speed test.
---------- Post added at 02:57 PM ---------- Previous post was at 02:46 PM ----------
I just did a test and got 57 33 for read and write.
Related
A-Data 8GB Class 6 MicroSD 18.95 shipped.
Get it while it's hot: http://www.meritline.com/adata-8gb-microsdhc-card-class4---p-26412.aspx 8 GB Class 6 (6 mb/s data transfer rate) SDHC adapter included Cheaper than A-Data's own class 4 cards right now. Can't miss it.
oops, nevermind...
Class 2 a little fast?
So I have a class 2 8gb sd card (sandisk) that I bought about a year ago. A similar one came with my G2 recently and I decided to test the speeds to use the faster one. The one I purchased a year ago, it turns out, reads at 10 MB/s and writes at 5.5 MB/s. I confirmed it with several trials. I thought that SD classes indicated speed... and that a class 2 = 2mb/s r/w, class 4 = 4, etc. This seems very fast, especially considering the other class 2 8gb that came with the g2 runs at about half the speed. How come they vary so much? Is this card that I have faster than a class 6?
You are right when you say a class 2 should have 2 mb/s and a class 4 should have 4mb/s, but there is something you are forgetting: the class is the minimum write speed. I have a samsung class 6, which has a minimum 6 mb/s write speed, but it actually writes at 9.5 mb/s and reads at 17 mb/s. A card is considered to be a class 2 if during testing it can consistently score 2 mb/s.
Sandisk cards are/were known for being faster than their ratings.
I just bought a sandisk 16gb class 2 on amazon. I ran a speedtest and was consistently getting class 4 speeds and and made it up to class 6. I'm glad I didn't pay extra for that class 4. Sent from my T-Mobile G2 using Tapatalk
I've ever had a bad experience with SanDisk MicroSD cards. SanDisk MicroSD Cards (Class2): Owned: 10 (Various sizes, 256MB - 2x512MB - 6x1GB - 1x8GB) Broken: 10 (After less than a year, on Motorola V3x, Nokia E66 and HTC HD2) - Speed: Avg. 6MB/s (HTC HD2) - Avg. 1MB/s (Nokia E66) - Avg. 4MB/s (Moto V3x) OEM/unknown MicroSD Cards (Class2): Owned: 3 (2x1GB - 4GB) Broken: 0 (bought more than a year ago) - Speed: Avg. 6MB/s (HTC HD2) - Avg. 1MB/s (Nokia E66) - Avg. 5MB/s (Moto V3x) Kingston MicroSD Cards (Class4): Owned: 2 (2GB - 4GB) Broken: 0 - Speed: Avg. 12MB/s (HTC HD2) - Avg. 5-6MB/s (Moto V3x) A-Data MicroSD Cards (Class6 -- 8GB): Owned: 2 Broken: 0 - Speed: Avg. 15MB/s (HTC HD2) - Avg. 18MB/s (Moto Milestone) So I don't think that Sandisk MicroSDs are so much good. Anyway, I'm planning to buy a 16GB MicroSD card for my Desire Z.. and surely it'll be an AData Class6 card...
microSDHC Measured Speeds
Lots of grumbling about the microSDHC that Samsung is shipping with the GS4G, which does carry a "Class 2" stamp on it, but just how fast is it? Tests were performed using a Lenovo T410s, Windows 7, ChkFlsh v1.16.1, and an Elago microSDHC Nano II USB reader. Tests were against the raw device. Tested were Samsung OEM 16 GB -- 14.9 MB/s read, 7.5 MB/s write Transcend 8 GB, Class 6 -- 14.8 MB/s read, 11.1 MB/s write AData 8 GB, Class 6 -- 14.9 MB/s read, 11.1 MB/s write Given these results, I'm finding the all the bashing and reported "slowness" of the card a little harder to give a lot of weight to. Even if the write speed is a little slower (or even a lot slower), that the read speed is comparable suggests to me that most things (like launching an app from /media/) wouldn't be significantly sped up by a Class 6 or Class 10 card. Maybe I'm missing something because of potential read bottlenecks in the reader or host USB controller that wouldn't be present in the physical device, but jeeze -- all of Angry Birds can be read off the card in a second.
My class 10 will be here Friday, I can let you know how that compares to the class 2 that came with it.
I benchmarked both of my cards in CrystalDiskMark (64-bit) in Windows 7 64bit. The cards were both placed into a Micro->Mini adapter. Here's what I came up with. Left side is Samsung 16GB, right side is my Transcend card. As you can see, for random 4K block performance, the Trasncend beats out the Samsung by a good amount. Not sure how often the phone actually encounters that type of usage. Also, I don't believe the numbers on the bottom row matter for the phone. That's with a Queue depth. I think it only matters on a PC using NCQ (Native Command Queuing). Random write performance is pretty horrendous for both cards.
The card that came with it keeps giving errors when I try to copy the partitions to my new c6. Might be my reader but this card doesn't seem very good. This could jave been the best phone on the market if it had a flash and a few gigs of internal storage. Not sure what theu were thinking. Sent from my SGH-T959V using XDA App
better late than never, here are my results: Class 2 card that came with my SGS4G - Write: 3.3 MB/s Read: 13.0 MB/s Class 10 Wintec 16GB: Write: 13.0 MB/s Read: 14.2 MB/s Although, on the Wintec class 10, I did see write speeds above 15 MB/s at one point.
SanDisk Extreme Pro or Ultra ?
These 2 cards are both class 10, but Extreme Pro marks as Up to 95MB/s read and 90MB/s write speeds, it's damn fast lol...... any big difference? Extreme Pro has only 16GB, no 32 GB
You should consider that desire can not be capable to write/read with these speeds...
Memory card
Have one of these and installed mod android 9 on it and just have bare minimum on it as use it for kids I'm looking for a memory card for this as I believe can only take 64gb and not more that correct.Want to put movie on it Any recommendations
I get something larger. It supports up to 1tb. I'm using a 512gb and upgrading to a 1 tb soon. Make sure it's V30 rated and use a well know name brand. Example: SanDisk 256GB Extreme UHS-I microSDXC Memory Card with SD Adapter Buy SanDisk 256GB Extreme UHS-I microSDXC Memory Card with SD Adapter featuring 256GB Storage Capacity, A2 / UHS-I / V30 / U3 / Class 10, Max Read Speed: 160 MB/s, Max Write Speed: 90 MB/s, Min Write Speed: 30 MB/s, Records Full HD, 3D, and 4K Video, Water / Shock / X-Ray Proof, Can Withstand... www.bhphotovideo.com
blackhawk said: I get something larger. It supports up to 1tb. I'm using a 512gb and upgrading to a 1 tb soon. Make sure it's V30 rated and use a well know name brand. Example: SanDisk 256GB Extreme UHS-I microSDXC Memory Card with SD Adapter Buy SanDisk 256GB Extreme UHS-I microSDXC Memory Card with SD Adapter featuring 256GB Storage Capacity, A2 / UHS-I / V30 / U3 / Class 10, Max Read Speed: 160 MB/s, Max Write Speed: 90 MB/s, Min Write Speed: 30 MB/s, Records Full HD, 3D, and 4K Video, Water / Shock / X-Ray Proof, Can Withstand... www.bhphotovideo.com Click to expand... Click to collapse Thanks Looking at the manual found online it seems it can only take 64gb dont want to spend money on higher gb and wont work?
funkyirishman said: Thanks Looking at the manual found online it seems it can only take 64gb dont want to spend money on higher gb and wont work? Click to expand... Click to collapse My bad... sorry. You can a V30 rated 64gb card for around $15 now I think. Get a Sandisk Extreme, known for speed and have a good reliability record.