SSD upgrade for my system?

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kemperkipie

kemperkipie

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Nov 24, 2011
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i7 - 3770k @4,2Ghz
Corsair H100i
16GB @2133Mhz
Asus Sabertooth z77
Asus Xonar D2x
2x Palit Jetstream GTX 680 4GB (SLI)
Corsair Force 3 SSD (Sata III)
Cooler Master Cosmos II

Now I currently have this Corsair Force 3 SSD, but it's not really working as expected. I bought it because the specifications said: Read speeds 550mb/s write 520 mb/s

But, Here are the results:
14btvn.png


A friend recently bought a 128GB Samsuns 840 PRO SSD. And his results were MUCH better.. All to 500mb/s where I had 200mb/s.
I was thinking to upgrade to 2 of them as well, in RAID0
But then, Samsung has in it's specs that the 128GB reads 530Mb/s and writes 380 Mb/s. The 256GB Reads 540Mb/s and writes 560Mb/s
Is the difference noticable?
If not thinking about prices, is it much better to get 2x256GB instead of 2x128GB in case of speed.
I don't want to hear the "if price doesn't matter, the more the better" argument. I want to know why.
 
Solution
Dereck47
Your ATTO results indicate that you are getting 98.4% of advertised Reads and 99.2% of advertised Writes.

Your drive is in excellent condition.

If you want to go for 2 drives in RAID-0 your benchmarks results will double but you wouldn't notice to much real-world difference in performance.
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andrew pocock-1302490

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Apr 15, 2013
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your getting confused with the rated speed.

it depends on what tests the manufacturer uses for there speeds.

certain ssd's perform better in certain writes than others, this usually comes down to firmware as a lot use the same controller and the same nand/memory


are you using a sata 3gbps or sata3/6gbps port?

because if your using a sata 2/3gbps port then that sounds about right as theoretical max speed for sata 2 is 384MB/s max (in real life i doubt you would ever get this figure)
 
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Dereck47

Dereck47

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Jan 20, 2011
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The advertised speeds for your SSD are with ATTO, not CrystalDiskMark.

ATTO uses highly compressible data to test Read/Write speeds. Highly compressible data is the easiest type of data for any SSD to Read/Write.

CrystalDiskMark uses highly incompressible data to test Read/Write speeds. Highly incompressible data is the hardest type of data for any SSD to Read/Write.
 
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Dereck47

Dereck47

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Jan 20, 2011
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Your ATTO results indicate that you are getting 98.4% of advertised Reads and 99.2% of advertised Writes.

Your drive is in excellent condition.

If you want to go for 2 drives in RAID-0 your benchmarks results will double but you wouldn't notice to much real-world difference in performance.
 
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