Unbelievable SSD speed

A

Alspleen

New Member
Hey all,I just want to share this with you because I find it a little difficult to believe, I have a Lenovo B590 laptop & recently replaced the 500gb HDD with a Samsung 128gb 840 pro & crancked up the RAM to 8gb, enough said, tell me what you make of my Crystaldisk mark score, because I don't know what to make of it, It's unbelievably fast, could this be possible?
:eek:
 

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Alspleen said:
Hey all,I just want to share this with you because I find it a little difficult to believe, I have a Lenovo B590 laptop & recently replaced the 500gb HDD with a Samsung 128gb 840 pro & crancked up the RAM to 8gb, enough said, tell me what you make of my Crystaldisk mark score, because I don't know what to make of it, It's unbelievably fast, could this be possible?
:eek:
Click to expand...
No, that's not correct, those speeds far exceed the capabilities of SATA, which at the moment is 6Gb/s (750MB/s) for a single drive. The drives themselves also top out around 500MB/s read and usually 450MB/s write.

That being said, I have two SSD's in RAID 0 and these are my scores:

 
Sounds like results from using RAPID, which uses 1 GB of RAM as a cache. So if you do tests like that with data sizes that fit in the cache, you'll just see the DRAM transfer rate.

You could probably disable RAPID in the driver set and re-test. That should give you more actual-SSD-performance figures.
 
Re:

Thanks for the reply & the info guys, yes it's indeed in rapid mode using samsung magician with the latest firmware update, well spotted, but I think it's high even for rapid mode (although I'm not complaining).
Also I know that using the over provisioning option helps SSD longevity, but can it also have an effect on performance?
 
Over provisioning should decrease reliability I believe. I wouldn't think it changes performance in any way.
 
Re:

Yes that's what I thought.
What about the fact that I have both the Magician rapid mode on plus the Intel IRST installed?
 
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