which one is a better graphic card?
Asus GTX650TI-2GD5 NVIDIA PCI Express Graphic Card
http://www.snapdeal.com/product/asus-gtx650ti2gd5-nvidia-pci-express/1387484?pos=11;66
or
Asus HD7770-2GD5 ATI PCI Express Graphic Card
http://www.snapdeal.com/product/asus-hd77702gd5-ati-pci-express/1387519?pos=8;66
Asus GTX650TI-2GD5 NVIDIA PCI Express Graphic Card
http://www.snapdeal.com/product/asus-gtx650ti2gd5-nvidia-pci-express/1387484?pos=11;66
or
Asus HD7770-2GD5 ATI PCI Express Graphic Card
http://www.snapdeal.com/product/asus-hd77702gd5-ati-pci-express/1387519?pos=8;66