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SSD performance difference when used on sata II or III

Last response: in Storage
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February 1, 2013 2:51:47 AM

Hello,
I don't keep up with the benchmarks etc.
I do know that the main advertised spec for an ssd is sequential read/write speeds.
for example, I am dealing with OCZ agility 4 256gb, and the speeds are about 4-500 mB/s.
now I am wondering, as far as everyday performance goes, how important is the sequential read and write speeds. is this the main factor in how it performs, or are the other speeds like 4k etc that I've noticed, which are lower speeds determinant.
and I am asking this because I just ordered a laptop that has pretty good specs EXCEPT that it has a SATA II connection. the laptop itself is a quad 2.3 apu, 8 gb 1600mhz, so i'm wondering how much of a difference I will experience with the ssd, compared to the same build with sata III.
is there a benchmark that would show the NET EFFECT of running a sata6g ssd on a sata ii port??
thanks!
February 1, 2013 3:25:15 PM

I don't know if there is a benchmark but what I can tell you is that SATA II runs at about 300MB/s while SATA III is at 600MB/s you really won't see to big of a difference. Either way you'll be fine with SATA II connection.
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a c 504 G Storage
February 1, 2013 4:04:20 PM

almeida82 said:
now I am wondering, as far as everyday performance goes, how important is the sequential read and write speeds. is this the main factor in how it performs, or are the other speeds like 4k etc that I've noticed, which are lower speeds determinant.


As far as everyday performance goes 4K Write speeds matter the most.
Check out this article: http://thessdreview.com/ssd-guides/beginners-guide/the-...
February 3, 2013 7:38:43 PM

awesome! thanks for your help!! those were some great links!
a c 504 G Storage
February 3, 2013 8:16:06 PM

No problem!
!