I don't know about AMD, because so far, I have been hearing that Intel is the better choice. Not sure. I just want to be able to play Minecraft at above 50 FPS, TF2 at above 50 stable and Just Cause 2
Both brands have their fanboys....Intel was the first chip made and has been around forever. I built a cheaper gaming pc two years ago, So I went with AMD and it has performed better than I could have ever expected.
Spent around $650 with deals.
Specs:
AMD black edition Phenom II quad core 3.4ghz cpu
ASUS m5a99fx mobo
XFX hd radeon 6770 gpu
WD 750gb hdd
Thermaltake soprano mid tower
2 x 4g Ripjaw ram (8g total) 1600spd
Thermaltake 600w PSU
Win 7 home edition 64bit
ASUS DvD drive
Later adds were another 1tb hdd
Digital fan controllers with thermal couples so I could see additional temps at my chipset, gpu, cpu and control my fan speeds based on those numbers... No need to run fans at 100% all the time.
I intended it to be a starter gaming pc and then I would do a badass Intel build later on. Well... This machine runs so well that I just don't need to build my big rig yet.. I get around 100fps in World of Warcraft, I play on max settings in Skyrim, and every other game I play and the lowest fps i see in Tf2 is 70-80. I mostly hang around 120-140. I'll run Tf2, 3 chrome windows including youtube, ventrillo or teamspeak.... And not slow down.