Nothing impressive, just my very first PC I built back in late 2010. Was on a budget of £300+ish. Its been upgraded since then - Doubled the RAM, Arctic Freezer 7 (fan failed) replaced with Freezer 13, Radeon 6850 to a GTX 960.
I think the processor was the last just before the bulldozer's came out, the PC still amazes me how well it can still run games on high settings. It's only slightly overclocked to 3.7ghz.