Which Graphics card should i buy

i am making a hardcore gaming pc and i am stuck on wich graphics card should i use the 

EVGA GeForce GTX 670 4GB Super overclocking + Backplate Version or the

Sapphire Radeon HD7950 Vapor-X OC Dual-DVI HDMI DisplayPort 3GB

 

some one tell me wich is better 

The 670 will perform better, however, you will get more frames-per-dollar with the 7950.

I would recomend looking up some benchamarks to see what card is right for the games you play. :3

 

I highly recomend the MSI twin frozr III 7950. Game framrates are pretty much a not an issue at 1080p anyways, so it comes down to the bitcoin advantage of the AMD or the CUDA advantage of the NIVIDIA.

I have vsync on because I have a bottom line 1080p monitor so most games sit between 50-60fps with the exeption of Crysis 3 and Metro 2033 bottoming about 30fps on intense scenes but usually between 45-60fps... with the 7950 at stock clocks. Overclocks amazingly too with some nice framerate boosts. Nice name Nilloc!

People say the GTX 670 performs better, but when you overclock both... the HD 7950 comes out top. It's also quite a bit cheaper. So I say go for the HD 7950.

Canada, U.S.A, and Mexico get a 3 year warranty too so overclock away... if your in North America. 

almost all benchmarks are too old to be accurate. AMD has been doing some wizardry with their drivers, and almost all the benchmarks i've see are from before the new drivers

you can probably get a 7970 for around the same price as a 670.