Is going from a Corsair ForceGT SSD to Samsung EVO 840 noticeable?

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Hail The Brain Slug

Diamond Member
Oct 10, 2005
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i dont think any SSD can saturate even sata2.
The speed difference is because of the interface itself.
However u will get almost double numbers on any SSD by R0 it.
Its when you go after more then 2 SSD's, thats where u hit the wall on sata2, and im guessing double that on sata3.

Do you even know what the theoretical bandwidth on SATA 2 is? It's 3.0 gbps, or 375 MB/s. A Corsair Force GT easily hits over 500 MB/s on sequential reads and writes on a SATA 3 controller, that undoubtedly will saturate a SATA 2 controller. Not to mention you'll likely never achieve the actual theoretical bandwidth.

Personal experience: My Force GT would only achieve 265 MB/s maximum on my old SATA 2 motherboard. After upgrading, I got an instant speed doubling to 560 MB/s.
 

Hellhammer

AnandTech Emeritus
Apr 25, 2011
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Do you even know what the theoretical bandwidth on SATA 2 is? It's 3.0 gbps, or 375 MB/s. A Corsair Force GT easily hits over 500 MB/s on sequential reads and writes on a SATA 3 controller, that undoubtedly will saturate a SATA 2 controller. Not to mention you'll likely never achieve the actual theoretical bandwidth.

Personal experience: My Force GT would only achieve 265 MB/s maximum on my old SATA 2 motherboard. After upgrading, I got an instant speed doubling to 560 MB/s.

SATA utilizes 8b/10b encoding (i.e. 8 bits are sent as 10), so the theoretical maximum of the 3Gbps interface is 300MB/s. Due to additional protocol overhead, ~265MB/s is the maximum you can get in real world from a SATA 3Gbps port.
 

TemjinGold

Diamond Member
Dec 16, 2006
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To update (since this thread got bumped), I'm the guy who thought he saw a difference between Vertex 2 and G2 160. I can't tell the difference between my old G2 and my current SSD. No regrets as I got an awesome BF price and I need the space but yeah don't do it for speed.
 

sequoia464

Senior member
Feb 12, 2003
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To update (since this thread got bumped), I'm the guy who thought he saw a difference between Vertex 2 and G2 160. I can't tell the difference between my old G2 and my current SSD. No regrets as I got an awesome BF price and I need the space but yeah don't do it for speed.

For day to day I don't feel much difference from my G2 160 and my newer drives. Only time I really see the difference is when writing say a 40 gb file to the X25.

This is comparison to a Crucial M4 & M500, Samsung 830, and a Toshiba Marvell based drive (all ~ 256gb drives)
 

nOOky

Diamond Member
Aug 17, 2004
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I went from a Corsair Force GT 180 gig to a Samsung 256 gig Pro, and honestly I could not tell a difference in anything. I bench marked both drives when they were new, but haven't compared them side by side. I figure as long as I'm getting somewhere close to the rated values by the manufacturers it's all good.
I don't "play" bench marks, but they can be useful to run just to make sure your drive is performing up to par, occasionally people run into problems that they wouldn't have noticed were it no for the benchmarks being out of whack.