ASUS EN8600GTS/G/HTDP/256M/A NVIDIA GeForce 8600 GTS 256MB 128-Bit GDDR3 PCI Express x16 HDCP SLI Dual-Link DVI Video Card w/2*DVI, HDTV NVIDIA GeForce 8600 GTS GPU, 675MHz Core Clock 256MB 128-bit GDDR3 Memory, 2000MHz Memory Clock 3840 x 2400 Resolution, HDCP and SLI supported 2 x DVI, 1 x HDTV / S-Video Out, Dual-Link DVI supported PCI Express x16 interface, NVIDIA Quantum Technology