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SSD Performance - Normal?

B

BugginOuT

Limp Gawd
Joined
May 14, 2008
Messages
462
Just got my first SSD (Corsair Force GT) and I'm using it as a Gaming drive instead of an O.S. drive, got my RAID 1 Raptors for that. (Redundancy)

Running it on SATA II, because everyone said the Marvell SATA III are shit, so I didn't even bother trying to hook them up on SATA III.

Based on the screenshot, is this what I'm supposed to see on a SATA II vs. SATA III? If I'm just using it as a Gaming drive, should I move it to the Marvell ports?

Corsair.jpg
 
Looks okay - the 4K speeds seem decent - you are really only losing sequential speed with SATA II over SATA III. For comparison, here's my M4 on the Intel SATA III ports.

m4asd.png
 
I guess I'll plug it in the Marvell SATA III port tomorrow, will post with new result.
 
Ok, I've plugged it in the Marvell SATA III port, put the controller mode to AHCI and installed the Marvell driver in Windows 7. Here is the new result:

Corsair2.jpg


The only increase I saw was on the sequential read.

So far, I am not impressed with the performance as Corsair said it's rated at 555/515. Should I return this drive and get an M4 instead? Is there anything else I can do to increase performance?
 
The reason you only saw a difference in sequential is because that's the only thing that SATA II limits. Random reads, which is where SSDs shine, isn't impacted nearly as much by SATA II/III. As for returning it, you won't see any noticeable difference between what you have and a faster M4 on anything but benchmarks.
 
500MB/s is only possible on Intel SATA3, and only with highly compressible data (like the 0fill test of crystaldiskmark).

Real world, your results are good, and there is nothing really faster that you can buy (unless you put a lot more money).

As you can see with your marvel test, access times are worse, which is a big no no for an SSD.
 
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