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[TechReport] A quick first look at USB 3.0 performance - Page 2

post #11 of 61
USB 3.0 has a tech spec speed of 4.8gbps, or 600MB/s. If we follow that it has about the same efficiencies as USB 2.0, we could expect a real-world maximum speed of 370MB/s.

That should be sufficient for quite some time, I do believe. All I have to say is, IT'S ABOUT TIME!
post #12 of 61
At newegg, there are already motherboard with USB 3.0 and SATA 6Gb/s

Here some examples
http://www.newegg.com/Product/Produc...-412-_-Product
http://www.newegg.com/Product/Produc...-614-_-Product
post #13 of 61
Quote:
Originally Posted by Craiga35 View Post
480mb/s is peak, that means you will almost never see that performance. Look at the graph in the OP, it was running at 37Mb/s.
480Mb/s = 60MB/s (1 Byte (B) = 8 bit (b))

The graph shows that it was running at 37MB/s (Megabyte not Megabit )
post #14 of 61
Wow. I'll definitely wait for the new Gigabyte AMD boards to come out with 3.0 support before I finish my build.
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post #15 of 61
Quote:
Originally Posted by Craiga35 View Post
480mb/s is peak, that means you will almost never see that performance. Look at the graph in the OP, it was running at 37Mb/s.

So this is basically as fast as e-sata, I don't know why devices just didn't adopt that?

EDIT: Just googled e-sata and found that it doesn't have the ability of powering the devices its using, that would be why.
USB 2.0 is 480 megabits per second, not bytes. 480Mbps is equal to 60MB/s.
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post #16 of 61
Quote:
Originally Posted by Craiga35 View Post
480mb/s is peak, that means you will almost never see that performance. Look at the graph in the OP, it was running at 37Mb/s.

So this is basically as fast as e-sata, I don't know why devices just didn't adopt that?

EDIT: Just googled e-sata and found that it doesn't have the ability of powering the devices its using, that would be why.
Quote:
Originally Posted by jpw007 View Post
e-sata doesnt supply power?
some motherboards do support "power-over-eSATA". But most externals use either a power brick, or an additional USB cabl purely for power.
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post #17 of 61
I hadnt seen one of those yet cheese. Then again hadnt looked at PC stuff in a fair while lol.

Had only seen esata ones with power bricks/usb power cables like you said.

Must be relatively new?
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post #18 of 61
Isn't USB 3.0 severely limited by bus speeds?
post #19 of 61
Quote:
Originally Posted by ThePath View Post
480Mb/s = 60MB/s (1 Byte (B) = 8 bit (b))

The graph shows that it was running at 37MB/s (Megabyte not Megabit )
Thank you. I thought most people on this forum knew the difference between Mbps and MB/s. Obviously not.
post #20 of 61
Quote:
Originally Posted by Cryptedvick View Post
FINALLY USB wont bottleneck external HDDs (that support USB3 that is).
External HDDs are already bottlenecked by their own speeds.

That's why SSDs are around.
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