This is my build and bare in mind i'm going to playing PC games such a BF4, COD, Minecraft(FTB) and Titanfall…
M/BOARD:
Gigabyte 990xA-VD3-AM3+
CPU:
AMD FX6-CORE FX 6300, 3.5 Ghz 14MB AM3+
HARD DRIVE:
1TB Western Digital Blue Sata3 64MB
8GB DDR3 COSAIR
GRAPHICS CARD:
2GB AMD RADEON R7 260x
OS:
Windows 7
I'm pretty sure this build would run all those games easily with no sweat.
However I would personally go with the Nvidia GTX 660 graphics card for a slightly higher cost but more-than-slightly higher performance (requiring 25 watts extra) (Very worth it imo). Also, I like nvidia's software better but maybe that's personal bias!
I think you should stay with that as it is a very good card however if you have a bit more money then get a 280x or if thats too much then a 270x. Hope this helps.
Get a gtx 760 or r9 270x at the least.
also, you might as well get a fx 8320 since its only ~~$40 more than the 6300, and for 2 more cores, thats worth it.