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Windows 7: USB 3.0 vs 2.0

04 Apr 2010   #31
pparks1

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by noyb View Post
I'm wondering if SATA 3 and USB 3.0 are faster than the current drive technology can feed ??
SATA 3.0Gbps is still faster than hard drives can supply data...let alone SATA 6.0Gbps. Technically, SATA 3.0Gbs can support a max of 385MB/s...but with overhead it's more like 300MB/s...which is faster than any consumer mechanical or SSD drive out today.

With regards to USB 3.0...the spec calls for 4.8Gbps. With overhead, they say it will reasonably run at 3.2Gbps or around 400MB/s....which again is faster than any drive including SSD can dish out.


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04 Apr 2010   #32
Submarine

Windows Seven Ultimate 64bit + Vista Ultimate 32bit SP2 Dual Boot
 
 

Here is a SATA III SSD to compare with: The new Crucial Real SSD C300.
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04 Apr 2010   #33
noyb

XP MCE .... XP Pro 64 .... W7 U x64
 
 

Quote   Quote: Originally Posted by whs View Post
Definitely. The devices that can feed it at full capacity have still to be invented. Even SSDs are too slow.
Somewhere, I've read that the OS system is also a speed bottleneck ..
But I didn't understand what I was reading.
Just for grins ... I've compared my HDD in an external (USB 2.0 and eSATA) and connected directly via SATA ... With different systems in the same computer.
Looks like USB 3.0 is about the same as SATA 3Gb/s .. If anyone is interested


Attached Thumbnails
USB 3.0 vs 2.0-crystal2.gif  
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04 Apr 2010   #34
pparks1

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by noyb View Post
Looks like USB 3.0 is about the same as SATA 3Gb/s .. If anyone is interested
That's because the bottleneck is the drive itself. Both SATA 3.0Gbps and USB 3.0 are significantly faster than your hard drive. Thus, I would expect the tests to show the same thing as it's really the hard drive that is now being tested.
My System SpecsSystem Spec
04 Apr 2010   #35
noyb

XP MCE .... XP Pro 64 .... W7 U x64
 
 

I figured that .. I'm thinking about trying a new HDD .. May order one this week ..
Then I can compare it to my Others
I've been looking for an enclosure that will take a SATA 6Gb/s HD and output USB 3.0.
Then I might go shopping for a new Mobo and Processor .. But the HDD will probably still be the Bottleneck.

What I was reading about the OS System had something to do with sector size and the way the files are managed in the OS.
I'm thinking it's a little early to get excited about all this ... It'll probably all be obsolete soon anyway.
My current computer is faster than I am anyway
My System SpecsSystem Spec
06 Apr 2010   #36
tw33k

Windows 7 Ultimate (x64) SP1
 
 

I'm getting this and this instead of this.
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06 Apr 2010   #37
noyb

XP MCE .... XP Pro 64 .... W7 U x64
 
 

Quote   Quote: Originally Posted by tw33k View Post
I'm getting this and this ...
Any chance you can get them from Newegg ?? ....... This & This
You will post test results .. Right ??

My New HDD will arrive Tomorrow ..
Was going to wait to get the card and enclosure.
My System SpecsSystem Spec
06 Apr 2010   #38
tw33k

Windows 7 Ultimate (x64) SP1
 
 

Quote   Quote: Originally Posted by noyb View Post
Quote   Quote: Originally Posted by tw33k View Post
I'm getting this and this ...
Any chance you can get them from Newegg ?? ....... This & This
You will post test results .. Right ??

My New HDD will arrive Tomorrow ..
Was going to wait to get the card and enclosure.
I'm in Australia so even if they ship here at all, freight will be expensive. I have organised a great deal with a local supplier. And absolutely I will post benchmarks
My System SpecsSystem Spec
06 Apr 2010   #39
noyb

XP MCE .... XP Pro 64 .... W7 U x64
 
 

For right now .. I was interested to see what performance improvement I'd get with the twice sized cache and dual processors running @ SATA 3Gb/s .. as compared to This One
My main computer won't take the card.
My System SpecsSystem Spec
06 Apr 2010   #40
tw33k

Windows 7 Ultimate (x64) SP1
 
 

Quote   Quote: Originally Posted by noyb View Post
For right now .. I was interested to see what performance improvement I'd get with the twice sized cache and dual processors running @ SATA 3Gb/s .. as compared to This One
My main computer won't take the card.
Yeah, that'd be good to know
My System SpecsSystem Spec
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 USB 3.0 vs 2.0




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