USB3 transfer speeds

kwikbreaks

Considering the top speed of USB3 is measured in gigabits and 50Twuncle is claiming his drive does 12Mbps (I suspect he means 12MBps) this isn't anything to do with confusing the top headline USB3 speed with the speed a mechanical HDD can achieve which is certainly a lot less.

If his drive is only achieving 12MBps with a half GB file then something is pretty wrong. The question is what and all the usual suspects are already covered in posts above.

niblettr

If it's a a mechanicle Hd and not an SSD, then 12MB/s is not that uncommon especially if if the smaller/slower 2.5" drive
A modernish sata drive would struggle to max out a USB 2 connection which is around 60MB/s

Edit: 12MB/s still sound a little low. Your not copying a file over a LAN connection are you?

50Twuncle

niblettr wrote: »

If it's a a mechanicle Hd and not an SSD, then 12MB/s is not that uncommon especially if if the smaller/slower 2.5" drive
A modernish sata drive would struggle to max out a USB 2 connection which is around 60MB/s

Edit: 12MB/s still sound a little low. Your not copying a file over a LAN connection are you?

It is not an SSD - I have the latest drivers and no I am doing it "locally"
I am assuming that it is a 2.5" drive - the case is small !!

Oblivion

So did you check the Policies as I suggested in #8 and is it set to 'Better Performance' ?

50Twuncle

Oblivion wrote: »

So did you check the Policies as I suggested in #8 and is it set to 'Better Performance' ?

Yes - I tried "better performance" & I tried "quick removable" - no difference in speed !

kwikbreaks

It will certainly be a 2.5 drive and probably only a 5400rpm one. The suggestion above that such a drive can reasonably be expected to only do 12MBps is completely wrong.

I have three USB3 drives of exactly that type and on my desktop they can do ~ 100MBps. In an earlier post I reported a quick check I'd made using one of them on this low-end laptop and it easily did a constant 75MBps.

Techradar review of what I'm guessing is 50twuncles drive - http://www.techradar.com/reviews/pc-mac/pc-components/storage/disk-drives-hdd-ssd/western-digital-my-passport-slim-1183614/review

The Western Digital My Passport Slim is USB 3.0, which means we expected high speeds when transferring data to and from the disk. The 120.9MB/s read and 120.8 MB/s write speeds don't disappoint, and are much higher than the 80.57MB/s and 80.5MB/s respective speeds of the older My Passport Essential. In a real world test a 1GB file transfers in just 10 seconds.

50Twuncle

kwikbreaks wrote: »

It will certainly be a 2.5 drive and probably only a 5400rpm one. The suggestion above that such a drive can reasonably be expected to only do 12MBps is completely wrong.

I have three USB3 drives of exactly that type and on my desktop they can do ~ 100MBps. In an earlier post I reported a quick check I'd made using one of them on this low-end laptop and it easily did a constant 75MBps.

Techradar review of what I'm guessing is 50twuncles drive - http://www.techradar.com/reviews/pc-mac/pc-components/storage/disk-drives-hdd-ssd/western-digital-my-passport-slim-1183614/review

You are correct - it is THAT drive - a 500Gb model
So - what's the fix ?

50Twuncle

danthemoneysavingman wrote: »

if you download CrystalDiskMark you can run different read-write tests to give you speeds. good bit of software

I tried to obtain a clean/unadulterated version of CrystalDiskMark - from the CrystalDiskMark website - but was unable to do so - the only available version of CrystalDiskMark included OpenCandy !!
Which I don't want on my PC !

JJ_Egan

http://crystalmark.info/download/index-e.html#CrystalDiskMark

kwikbreaks

50Twuncle wrote: »

So - what's the fix ?

I suspect we haven't had the full tale from you on exactly what you are doing that makes you believe it is running slowly. If it isn't faulty I can't see that it can be as slow as you say if subjected to a proper test.

Lets wait and see what the disk test has to say.