Originally Posted by Dargonplay
Based on his answer I take that AMD architecture don't fully utilize my SSD like Intel? If that's so, it's even more sad that I thought.
Also, he says that speeds are "UP To 98K IOPS" which means you won't really get that speed all the time, but getting half that is really bad.
Other than that, I don't see how it answered my question since all this information feel really ambiguous, if the AMD southbridge can't handle those IOPS, then should I overclock it? It feels like there's so little documentation on SSD, like if it were a black market product, I though that at this point there would be a paradise of information regarding all matters related to SSD, but it's just the opposite
The problem determining (if possible) the cause of the IOPs results you have is, there are many
potential reasons that could be the cause. Many of those causes are not simple things, or could be a combination of things.
Forgive me for this, but imagine someone posting the following in a forum: "My PC is very slow, what's wrong?", and that is all they said. How do you answer that question? Just an example, we all wish things were simple, but consider how complex a PC is, and all the variables, the differences in hardware, software, and usage.
Performance specs for SSDs are done on new, unused, empty drives. People post benchmarks on new, unused, empty drives, but others have their OS, programs, games, etc, on their SSDs and really use them. A used SSD is not quite as fast as a new and empty SSD, users don't want to accept that but it is true. An empty SSD has nothing to do, an OS drive is serving Windows while you run a benchmark, and a PC is never truly idle, doing nothing. Windows does not wait for the benchmark to finish, the benchmark program does not "own" the PC and all its resources. If the only thing on a say ~256GB SSD is the OS, then it can provide great benchmark results, but benchmark enthusiasts also tweak Window's tendency to run more programs and services than are needed, they disable those things. Windows has less to deal with, so more time to give to a benchmark program.
Yes, AMD's SATA III interface is not quite as fast as Intel's, why I don't know. I found in a Samsung 840 Pro datasheet that they use an Intel SATA III board, and use the generally acknowledged fastest version of the IRST driver.
If you enable CPU power saving options in the BIOS, they affect benchmark results, they will be lower. If the CPU is OC'd, that can increase benchmark results somewhat.
Since you use Windows 8, I just read something in the very forum about the new SSD Optimize feature. There are claims that this feature, which can be (and is by default) set to run on a schedule, can actually reduce the performance of a SSD. I'm not sure if this is true or not, but the information provided that supports this claim seems reasonable, and is not based on nothing at all.
The quick fix for this it to disable automatic/scheduled SSD Optimization in Windows 8. Coincidentally, I have scheduled SSD Optimization disabled, since I don't trust Windows to do things for me, like install drivers. Give this a try, but I imagine it will take at least several days before you see any difference, if it even happens at all, in your benchmark scores.
BTW, what SATA mode are you using, and what SATA driver are you using? What AMD board do you have?