eVGA nVIDIA GeForce 9800GX2 1GB GDDR3 512-bit PCI-E 2.0 x16

NVIDIA® SLI™ Technology
Next-Generation Superscalar GPU Architecture
NVIDIA® unified architecture with GigaThread™ technology
Full Microsoft® DirectX® 10 Shader Model 4.0 support
16x full-screen anti-aliasing
True 128-bit floating point high dynamic-range (HDR)
NVIDIA Quantum Effects™ physics processing technology
PCI Express 2.0
HDMI Support
OpenGL 2.1 Optimizations and Support