NVIDIA GeForce GTX690 PCI-EX3.0 4096MB GDDR5, 512-bit,Dual link DVI-I*2/ DVI-D/ mini DisplayPort with HDCP protection ,power supply requirement: 650W
NVIDA GeForce GTX590 PCI-EX2.0 3072 MB (1536 MB per GPU)GDDR5 ,768-bit (384-bit per GPU),Dual link DVI-I*3 / mini DisplayPort , NVIDIA 3D VisionTM Surround and Quad SLI technologies
NVIDIA GeForce GTX680,PCI-E 3.0 interface,2048MB GDDR5 memory and 256-bit ,Dual-link DVI-I/ DVI-D / HDMI / DisplayPort,NVIDIA 3D Vision? Surround and SLI technologies
ATI Radeon HD7970 (DirectX? 11/ Eyefinity/ Full HD 1080p),PCI-E 3.0 3G-DDR5 384 BIT, Dual-link DVI-I / HDMI / Mini DisplayPort*2,Core Clock OC to 1000MHz
NVIDIA GeForce GTX670,PCI-E 3.0,2048MB GDDR5, 256-bit ,Dual link DVI-I/ DVI-D/ HDMI/ DisplayPort with HDCP protection ,power supply requirement: 550W
ATI Radeon HD7950 (DirectX? 11/ Eyefinity/ Full HD 1080p),PCI-E 3.0,3072MB GDDR5, 384-bit,Dual-link DVI-I / HDMI / Mini DisplayPort*2,Core Clock OC to 900MHz
ATI Radeon HD7870 (DirectX? 11/ Eyefinity/ Full HD 1080p),PCI-E 3.0, 2GB GDDR5 memory and 256-bit ,Dual-link DVI-I / HDMI / mini DisplayPort * 2,AMD Eyefinity Technology and Avivo?HD
ATI Radeon HD6950, (DirectX? 11/ Eyefinity/ Full HD 1080p), PCI-E, 1GB, 256 bit, GDDR5, Dual-link DVI-I /DVI-D / D-sub (By adapter)/ HDMI/ Displayport ,CrossFireX? and Avivo?HD technology
NVIDIA GeForce GTX560 PCI-EX2.0 1GB,GDDR5,256 bit,DirectX 11 and OpenGL 4.1 support ,Dual link DVI-I*2 / mini HDMI with HDCP protection ,PureVideo? HD
NVIDIA GeForce GTX560 PCI-EX2.0, 1GB,GDDR5,256 bit,DirectX11, Dual link DVI-I*2 / mini HDMI with HDCP protection ,WindForce? 2X cooling design ,NVIDIA 3D Vision? and SLI technologies ,