artavasdes

@vukos @Eigenvektor @Zando Bob @Sir0Tek I have installed windows 10 pro and there is no performance difference in games what so ever. Task manager detects 16 cores now instead of 8 which is good. One cinebench r15, I got a score of 1972 (which I think is worse than Linus's) this may be due to the memory configuration. I am going to mess around with the memory configuration and gpu drivers/settings and see if anything happens.

Yeah, I will make sure to do all this once I get windows 10 pro installed.

You're welcome I suspected you had a good PSU, just thought I'd mention it, because I saw someone else have an issue with it. Good to see disabling HT did improve things a little. Not sure you'll be able to disable a whole CPU in BIOS (don't think its possible), but some have the option to limit the number of cores at least. Seems like a pain, but I suspect you'll have to remove one CPU to see if it improves things further.
 
Not much you can do about NUMA. It's basically how a CPU is attached to its memory. If a core needs to access RAM that physically belongs to the other CPU, it'll have to go through that other CPU, which adds additional latency.
 
 

While I was in my BIOS trying to look for the option to disable cpu cores, I found out I had hyperthreading enabled, so I disabled it. I ran the rainbow six siege benchmark and instead of getting an average FPS of 155, I got 190. This is a great improvement, but I am still going to try and remove some ram modules (see if it does anything), see if I can disable cpu cores, and remove one cpu. Thanks for the help.
The hyper threading really takes a toll on your performance with cpus like this.

Hm, I was also wondering if dual-CPU might be an issue. It's not very common in gaming rigs, and maybe that has something to do with it. I know that e.g. Threadripper 2 had some issues in games, due to multiple NUMA nodes and/or games being unable to handle this many cores. It has a "game mode" that disables half the cores. So I suppose it's definitely worth a try.
 
I've also come across another thread were someone had a similar issue and people suggested that it might be a PSU that was too weak, i.e. the card couldn't run at full speed because it couldn't get enough power. Might be something else to look at.

Afterburner should also report GPU temps (should be able to see them while gaming, same as fps and usage). If the GPU is thermal throttling you should be able to see high temps there.
 
And, as I said, you could use GPU-Z to see if something looks off.