HP ATI FirePro V3700256MB Graphics Card for xw4600, Z400 & Z600
Sapphire HD 5970Sapphire HD 5970 2GB GDDR5 Dual DVI Mini Display Port Out PCI-E Graphics Card
XFX HD 5850 Black Edition
1GB GDDR5 HDMI DVI Display Port Out PCI-E Graphics Card
http://image.ebuyer.com/UK/w0241527_normal.jpgXFX HD 5870 1GB DDR5 Dual DVI HDMI DisplayPort PCI-E Graphics Card