EVGA GeForce GTX770 2GB ACX Cooler Superclocked vs Sapphire Radeon HD7970 3GB Vapor-X

Hardware GPU
1

Hi guys, 

which from those two is better for gaming on a single monitor 1080p?

2

Depends on the games you like to play.  They are generally on par as far as performance in games is concerned.  I would go with the HD 7970.  It has more VRAM which would be useful in heavily modded games such as Skyrim.  It is also a bit cheaper and comes with a free copy of Crysis 3 on Newegg.  I recommend this version of the 7970...

http://www.newegg.com/Product/Product.aspx?Item=N82E16814127732&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=3938566&SID=

Also, the HD 7970 is now supported by Adobe Premiere, so CUDA isn't necessarily an excuse anymore.

http://blogs.windows.com/windows/b/extremewindows/archive/2013/07/19/adobe-premiere-pro-cc-hands-on-multi-gpu-support-and-more.aspx