Originally Posted by
Erikrsson
Ditch the AMD CPU & mobo, go for a haswell with an unlocked core so you can OC it. Might sound fanboyish, but if you plan on playing games and expect extra performance, intel's quad cores are better than amd's eight. However, if you plan to do other stuff on it such as designing, rendering and all these things - go for the AMD. DO NOT go for Windows 8.1 - I'd rather go for Win7 Ultimate x64.
On my old junk I can play wow on ultra, 1920 x 1080 with just environment detail & foliage turned to low(don't see a reason to keep it on ultra, all it does is wasting your FPS that could be spent on something else) and I have no lag when 10m raiding. C2Quad q8200 @ 2,59 ghz, gtx460 1gb OC'd higher than stock gtx470 and just 4gb of 1,33 ghz ram. With the PC you've listed us here I guess you'll easily run 25mans on the highest possible details with no lag at all, hell, as far as I'm concerned you'll even be able to record it flawlessly. As for other games, I can even run BF3 on ~40-50 fps on ultra, AC4 BF ~30-50 fps depending on where you at, mid-high details.
You got to remember - even with a beast hardware your PC might be slow as fuck if you don't take care of your software - make sure to give it a CClean once in a while to keep your registry clean, the same goes for your HDD, do not hesitate to defrag it once in a while as well.