mostafa007 :
sapphire toxic version r9 280x has the upper hand than any gtx 770 versions
I don't think so. 1080p gaming, fps in different games.
BF3:
Gigabyte GeForce GTX 770 OC Windforce 2 GB: 102.23
Sapphire Radeon R9 280X Toxic OC 3 GB: 89.12
Metro 2033:
Gigabyte GeForce GTX 770 OC Windforce 2 GB : 92.50
Sapphire Radeon R9 280X Toxic OC 3 GB : 90
Crysis 2:
Gigabyte GeForce GTX 770 OC Windforce 2 GB : 83.20
Sapphire Radeon R9 280X Toxic OC 3 GB : 81.80
Mafia 2
Gigabyte GeForce GTX 770 OC Windforce 2 GB : 106.70
Sapphire Radeon R9 280X Toxic OC 3 GB : 91.20
GTA 4
Gigabyte GeForce GTX 770 OC Windforce 2 GB : 66.89
Sapphire Radeon R9 280X Toxic OC 3 GB : 66.67
Batman Arkham City
Gigabyte GeForce GTX 770 OC Windforce 2 GB : 159
Sapphire Radeon R9 280X Toxic OC 3 GB : 176
AvP:
Gigabyte GeForce GTX 770 OC Windforce 2 GB : 66.70
Sapphire Radeon R9 280X Toxic OC 3 GB : 78.90
Starcraft 2:
Sapphire Radeon R9 280X Toxic OC 3 GB : 120.06
Gigabyte GeForce GTX 770 OC Windforce 2 GB : 106.30
Dirt3:
Sapphire Radeon R9 280X Toxic OC 3 GB : 144.90
Gigabyte GeForce GTX 770 OC Windforce 2 GB : 194.30
Temperature on Load:
Sapphire Radeon R9 280X Toxic OC 3 GB : 80ºC
Gigabyte GeForce GTX 770 OC Windforce 2 GB : 69ºC
Power on Load:
Sapphire Radeon R9 280X Toxic OC 3 GB : 298W
Gigabyte GeForce GTX 770 OC Windforce 2 GB : 244W
Noise on Load:
Sapphire Radeon R9 280X Toxic OC 3 GB : 48.80dB
Gigabyte GeForce GTX 770 OC Windforce 2 GB : 37.20dB
GTX 770 has the upper hand here. It's a point of view derived from facts not personal opinion or liking. But my personal opinion is that the difference is not that much overall, both are great equal cards nonetheless and a gamer should buy either one depending on which is cheaper in his country.