Sign in with
Sign up | Sign in
Your question

SSD- SATA II vs SATA III

Last response: in Storage
Share
September 5, 2012 10:21:10 PM

is there a big performance difference between sata 2 and sata 3 SSD's? i know the speed numbers show there is, but wondered if in practice the difference is that large. i would be using it as a read device.

thanks.

More about : ssd sata sata iii

September 6, 2012 3:21:20 AM

It depends, you should verify your drive's specs...

SATA Speeds:

SATA1: 1.5 gigabits/sec
SATA2: 3 gigabits/sec
SATA3: 6 gigabits/sec

So a drive with a maximum of:

100 megabytes/sec = 800 megabits/sec ->SATA1 would be enough
300 megabytes/sec = 2.4 gigabits/sec ->SATA3 would be better
500 megabytes/sec = 4 gigabits/sec ->SATA3 would be better

Note that if your drive has a cache, this cache can be faster then its average speed.
Please quote and correct me if I'm wrong.
m
0
l
September 6, 2012 3:32:21 AM

if the drive is being accessed constantly then SATA3 is better, lighter work (windows Boot) SATA 2 will be fine
m
0
l
Related resources
a b G Storage
September 6, 2012 3:41:20 AM

300MB = 2.34375 Gbit
500MB = 3.90625 Gbit
m
0
l
September 6, 2012 3:51:30 AM

jimlau said:
is there a big performance difference between sata 2 and sata 3 SSD's? i know the speed numbers show there is, but wondered if in practice the difference is that large. i would be using it as a read device.

thanks.



I wanted to respond, I have a sata 3 ssd drive and when I put it into a sata 2 port the windows 7 logo completes and stays for about 3 seconds, then goes to my desktop.

When I have it on my sata 3 port the boot up almost completes the windows logo.

Game wise though I haven't noticed any difference.
m
0
l
a b G Storage
September 6, 2012 4:00:58 AM

jimlau said:
... i would be using it as a read device.

What exactly do you mean by that statement?
m
0
l
September 6, 2012 4:01:21 AM

If you SSD average read/write speed is 300MB/s or higher you are better off using SATAIII ports and Cables with it:

I don't have any SATAII response as my first mobo is Z77 and it come with 2 SATAIII port & cables, it is helpful if your games are on your SSD and you constantly need to load during games

From TR's OCZ Vertex 4 review



m
0
l
!