Full Details from Amazon.com : http://www.amazon.com/gp/product/B002HJ1FEW?tag=onigi-20
Galaxy GeForce GTS 250 512 MB GDDR3 PCI Express 2.0 DVI/HDMI/VGA SLI Ready Graphics Card 25SFF6HX1RUI
NVIDIA Unified Architecture wit GigaThread Technology
Dual-Link DVI supports 2560x1600 displays and one HDTV output
Supports PCI Express 20 and OpenGL 21
Built for Microsoft Windows Vista
512MB 256BIT DDR3
