i am upgrading my system and i am stuck between 4 card
MSI R6870 Hawk Radeon HD 6870 1GB
Gigabyte GV-R687OC-1GD ATI HD 6870 OC PCI-E 2.0 1GB
Asus GF GTX 560Ti DCII TOP PCI-E 2.0 1024MB DDR5 256-bit 900/4200MHz
Gainward Geforce GTX560Ti 2G V/2D/H 2048 MB 256 bit GDDR5
any suggestions
MSI R6870 Hawk Radeon HD 6870 1GB
Gigabyte GV-R687OC-1GD ATI HD 6870 OC PCI-E 2.0 1GB
Asus GF GTX 560Ti DCII TOP PCI-E 2.0 1024MB DDR5 256-bit 900/4200MHz
Gainward Geforce GTX560Ti 2G V/2D/H 2048 MB 256 bit GDDR5
any suggestions