I started out with the HIS radeon 6670 DDR5, but it just didn't cut it with the graphics... So I moved up to the 7850 and overclocked it to 1089 MHz. It's stable, and moving it up to 1100 causes driver crashes, so I'm assuming this is about as high as I can get it. It plays diablo 3 and battlefield 3 with ultra settings on everything with AA x4 with 55+ fps at all times.
It runs really cool with 5 case fans (3 came with the case, 2 extra were installed on the side). Side fans are a little loud but they spin at 2000 RPM, so they definitely cool well. Also, I have not run Prime95, so the CPU under load is most likely low, this is just when playing Diablo 3/Battlefield. I also threw in a sound activated red cathode tube, and it has a sensitivity dial, so I'll turn the dial to least sensitive and turn my speakers up when playing bf3, and every time I shoot the tube will flash red... Pretty BA if you ask me :)
Cable management................. Not so good. There isn't much space behind the mobo so there wasn't a whole lot I could do about all the wires. Could be a little neater, but for now, this will work.
I have had no problems with this build at all. This has been able to do everything I wanted to and more, and will be looking to build another one asap.
Render: direct3d11 Mode: 1920x1080 4xAA fullscreen Shaders: high Textures: high Filter: trilinear Anisotropy: 4x Occlusion: enabled Refraction: enabled Volumetric: enabled Tessellation: normal
EDIT: I moved up to an SSD and Diamond Radeon 7970.