What card will give the best performance ?
1. Asus GeForce GTX 680 DirectCU II TOP 2GB.
http://www.scan.co.uk/products/2gb-asus-gtx-680-directcu-ii-top-28nm-pcie-30-(x16)-6008mhz-gddr5-gpu-1137mhz-boost-1201mhz-cores-15
OR
2. Sapphire HD 7970 Vapor-X GHZ Edition 3GB.
http://www.scan.co.uk/products/3gb-sapphire-radeon-hd-7970-vapor-x-ghz-edition-6000mhz-gddr5-28nm-gpu-1000mhz-2048-cores-dp-2x-dvi-
PC Specs
Case > Corsair Obsidian 650D
CPU > i7 3770k @ 4.5GHz
GPU > GTX 560 (ATM)
RAM > Kingston Beast 16GB 2400Mhz
MOBO > Asus Sabertooth Z77
HDD > 2TB WD Caviar Black
SSD > Kingston 240GB SSD
PSU > Corsasir HX850
CPU Cooler > Corsair H100i
1. Asus GeForce GTX 680 DirectCU II TOP 2GB.
http://www.scan.co.uk/products/2gb-asus-gtx-680-directcu-ii-top-28nm-pcie-30-(x16)-6008mhz-gddr5-gpu-1137mhz-boost-1201mhz-cores-15
OR
2. Sapphire HD 7970 Vapor-X GHZ Edition 3GB.
http://www.scan.co.uk/products/3gb-sapphire-radeon-hd-7970-vapor-x-ghz-edition-6000mhz-gddr5-28nm-gpu-1000mhz-2048-cores-dp-2x-dvi-
PC Specs
Case > Corsair Obsidian 650D
CPU > i7 3770k @ 4.5GHz
GPU > GTX 560 (ATM)
RAM > Kingston Beast 16GB 2400Mhz
MOBO > Asus Sabertooth Z77
HDD > 2TB WD Caviar Black
SSD > Kingston 240GB SSD
PSU > Corsasir HX850
CPU Cooler > Corsair H100i