Why do we even have USB 3.0? It doesn't seem any faster.

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pkim1230

pkim1230

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Aug 15, 2016
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I have a computer with only USB 2.0 interfaces.
I recently bought a 128gb flash drive that has USB 3.0 interface.
I have heard USB 3.0 is ten times faster than USB 2.0, so I installed a PCI express USB 3.0 card in my PCIE slot, and installed the drivers as well.
When I write to my 128gb flash drive, the speed of USB 2.0 slot writes at about 23mb/s.
When I write to my flash drive using the newly installed USB 3.0 slot, it goes at 27mb/s.
That's not ten times. It's just a little more. I was expecting near 200mb/s write speed.
What am I missing here, and is this the point of USB 3.0? Thank you
 
Solution
mcnumpty23


not necessarily should always look for the speed when buying a flash drive

if you know the model number can look it up though

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Interface bandwight not the same as a speed of memory read/write operations. Little cat use a wide door.
The speed of data reading from hard drive can limit of writing speed. Copying of small files also can limit speed indices
To test your flash drive try to use Crystal disk mark.
 
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Realization of the new standard.
pkim1230, I've looked at the test of your drive on the utube and there was reached a speed about 130 mb/s in operations of sequental read and 80mb/s in operations of seq. write. Try to test your drive in special programms
 
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I'm not interested in special program benchmarks.
I just want the maximum write speed when I move files into my flash drive.
Is 30mb/s the best it can do? What do I have to do to achieve the 80mb/s write speed? Buy a new motherboard with built in USB 3.0? Is my PC hard drive bottlenecking the write speed of the flash drive?
 
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Benchmark will show you the speed limits in different scenarios of using, and we could compare the results with others and decide that the drive works normaly or not.

Max speed can be reached in sequental operations.
 
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Something must be wrong with my flash drive.
I tried to write something into my old PNY Usb 3.0 flash drive, and it was at whopping 135mb/s and slowly dropped to 60mb/s.
This is still way faster than 30mb/s the Samsung did. Is something wrong with my samsung drive?
for extra testing, my PNY usb 2.0 (not 3.0) flash drive wrote at a speed of 10mb/s...
 
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not necessarily should always look for the speed when buying a flash drive

if you know the model number can look it up though

 
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Solution


It's in my original post. you can click on it.
 
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says up to 130 but heres the first review

Large file sequential transfer speeds are around 30+MB/s write and 100+ read though during very large transfers 10GB+ the drive will throttle down I assume due to heat build up (only occurs during writes) but it will resume rather quickly and does not slow the drive down significantly (it still pulls an avg 30+MB/s)
 
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So small files at 130mb/s write, and large files pretty much stuck at 30mb/s? While my three year old PNY 3.0 does 100mb/s? arg..
here is my PNY: https://www.amazon.com/PNY-Turbo-32GB-Flash-Drive/dp/B00FDUHD2K
 
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i dont like when they just say up to 130 or whatever speed it usually means its got a decent read speed but poor write speed

i always look for a drive that clearly tells you both the read and write speed

and far as i know the sandisk extreme is the best out there for a reasonable price with good high read and write
 
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I thought they would all be around the same, considering they are both usb 3.0...
Why would people be buying this crappy usb anyway? I should've bought another PNY!!!
I got this flash drive because bunch of people on slickdeals were going crazy over it.
Shit I bought two of them...
 
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no theres a very wide gap between flash drives i did a lot of looking before getting the sandisk extreme

thats when i noticed if they dont clearly give a read and write speed to look a lot more carefully at the drive--if your drive can do really good read and write

you are going to shout about it not just say up to xx speed with out giving the write speed as well

and if some people went crazy for it could just be because whatever they had before was slower than that
 
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