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ahdickter

macrumors 6502
Original poster
Jun 12, 2011
293
0
Pittsburgh, Pennsylvania
Is there any noticeable real-world difference between using an SATA II SSD versus an SATA III SSD? I know that SATA III offers increased throughput but is there will the average user be able to tell the difference?
 
To answer your question, in %99 percent daily usage, no. Say with Sata 2 you open up a program in two seconds, Sata 3 one second. I have a Apple Sata 2 Toshiba SSD in my Macbook pro, and a OWC SSD Sata 3 in the optibay and cannot tell the difference in daily usage.

If I run a speed test, yes. But most files and applications use 4k blocks random reads that take seconds to open. Most daily tasks are random reads. Reading random reads takes a second or a few seconds. The difference between the two is nil.
 
it depends on the drive, some HDD's still don't saturate SATA II but with a good fast SSD you should see a difference, at least sometimes
 
If your MacBook only has a 1.5GBit/s connection, there is no difference because both SATA 2 and SATA 3 SSDs will be throttled.
 
I post this in every thread:

You can certainly tell the difference between a regular HDD and a SSD. If you look at benchmarks, you'll see that SATA III SSDs are a lot faster than SATA II SSDs. From day-to-day use, it's unlikely you will be able to tell the difference.
 
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