SSD speed difference between sata 1 and 2

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Cannondale151

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Apr 11, 2013
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I have my 500 GB samsung 840 SSD and my 2 TB HDD connected to my only SATA 2 ports on my mother board. I want to try to utilize my "old" 60 gb SSD to put linux on it and run a game on it. What is the speed difference of the SATA 1 vs SATA 2? I don't really the brand name/model of the 60 gb SSD right now, and I got it free with my computer.
 
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Paperdoc

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Oct 19, 2006
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An SSD should be able to move data as fast as the max speed of a SATA II (more properly, SATA 3 Gb/s) port. On the other hand, few HDD's can move data any faster than the original SATA 1.5 Gb/s port speed, and those few that can only exceed that speed by a little. So your best alternative is to put your SSD's on the SATA II ports, and the HDD on an older SATA I port.

I am intrigued, however. Not many machines are still running with mostly SATA I ports and a small number of SATA II. Such machines often are using other hardware so slow that they can't keep up with the speed of an SSD for storage, although I can understand that the SSD would perform faster than the HDD. You really do have a mobo with those SATA ports?
 
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jitpublisher

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May 16, 2006
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The thing to remember about an ssd's speed that matters to most users, even gamers, is not the huge sustained numbers of transfer speed, its the near 0 access times that make the ssd so damn amazing. So unless you are doing something that requires big sustained transfer rates, you wont notice whether its plugged into an sata 1, 2, or 3.
 
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Paperdoc

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Woah! You misunderstood your mobo's ports. They are much faster than you said.

The four SATA 3 Gb/s ports are NOT the original SATA, they are what used to be called SATA II. The two SATA 6Gb/s ports are the latest and fastest, improperly called "SATA III" by some.

Given that, the advice is only slightly different. NO mechanical HDD (with spinning disks and moving heads) can even come close to the max data transfer rate of the SATA 3 Gb/s ports, never mind the faster new ports. On the other hand, there are already some SSD's on the market that ARE faster than 3 Gb/s. So, in general put any SSD unit on a SATA 6 Gb/s port, and put HDD's on older SATA 3 Gb/s ports.
 
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