Class 6 or Class 10 MicroSD Card?

sonyxperiageek

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Topic # 111472 4-Nov-2012 17:59
I'm planning on getting a 64gb microSD card (Sandisk) from Amazon for my Galaxy Note and was wondering is the speed factor the only difference between the class 6 and class 10 with uhs-1? Matthew -- NZ TechBlog - "With News, Reviews, Videos and Chat it is the all time tech-lover wonderland!" \| A bit about me \| Follow me on Twitter \| My Geekzone blog

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Reply # 711862 4-Nov-2012 19:07
Class is not the best indicator. Get benchmarks/a review: In general: High class = high sequential IO Low class = high random IO You want to strike a balance between the two. The sandisk mobile ultra UHS-1 class 10 does this nicely. Three cards i tested, top is 50mb of transfer, bottom is 500mb of transfer:

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Reply # 711885 4-Nov-2012 20:13
sonyxperiageek: I'm planning on getting a 64gb microSD card (Sandisk) from Amazon for my Galaxy Note and was wondering is the speed factor the only difference between the class 6 and class 10 with uhs-1? Also by the looks of the reviews on amazon of that card, some people have been sold lemons. Are you saving much by buying overseas compared to NZ

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Reply # 711886 4-Nov-2012 20:14
The one I was looking at was this one: 64GB MicroSD Card Matthew -- NZ TechBlog - "With News, Reviews, Videos and Chat it is the all time tech-lover wonderland!" \| A bit about me \| Follow me on Twitter \| My Geekzone blog

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Reply # 712274 5-Nov-2012 14:13
The benchmark result had the read speed capped at 20 MB/s and likely using USB 2.0 main benefit of UHS-1 is read speed over USB 3.0 afaik. It could go as fast as (claimed) 90 MB/s, benefiting ppl move huge video and picture files from media to PC/mac. HD video recording recommends minimum class 4, with 1080p 50p writing just under 3 MB/s, class 4 is borderline ok - but some class 4 could do much more than that, and some class 4 could hardly keep up with 4 MB/s. Depends on what you doing with the card, you may not feel a huge difference using it as a storage (play MP3 for example) between a class 6 and a class 10 UHS-1 from the same brand. Seeing that the class 10 is only a few bucks more expensive than class 6, i see no reason why not go with class 10. http://www.amazon.com/SanDisk-microSDXC-Memory-Adapter-SDSDQUA-064G-U46A/dp/B007WTAJTO/ref=pd_sim_pc_1

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Reply # 712310 5-Nov-2012 14:45
sonyxperiageek: The one I was looking at was this one: 64GB MicroSD Card Thats the one I read too, and there is quite a high percentage only giving it 1 star.

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Reply # 712435 5-Nov-2012 17:28
I'd say pay the money and get a UHS-1 SanDisk card. Then it's a keeper for a future exFAT capable phone. The following is what you get on Win7 notebook with a SDcard reader when benchmarking a SanDisk Ultra Mobile 32GB UHS-1. Get a lot less on my phone, with seq write at ~6.5MB/sec and seq read at ~17MB/sec, but it's an old phone (Sony Ericsson X10i) Interestingly, in a lot of the old phones, the SDcard at Class4 or greater will probably be faster than the read rate of internal memory.