bloodxakep :
Hello guys i want to buy a new GPU so i can't decide what to buy GTX 770 ASUS 4GB or ASUS R9 290
What will be a good variant? Or Gigabyte Radeon R9 290
Video memory is not a good measure of video card performance.
The R9 290 is significantly faster than the GTX 770.
The 4GB GTX 770 is primarily suited to SLI setups because as a single card the GTX 770 isn't fast enough to support the resolutions where you would need 4GB of video memory.
After saying all of that, for a 1920x1080 resolution system the GTX 770 2GB is a good card.
At higher resolutions, the R9 290 is a better choice.