EVGA GeForce GTS 450 1024 MB GDDR5 PCI Express 2.0 2DVI/Mini-HDMI SLI Ready Graphics Card, 01G-P3-1351-KR GeForce GTS 450 with 783 MHz Core Clock PCI Express 2.0 1024 MB 128-bit GDDR5 Memory 3608 MHz Effective Memory Clock and 1566 MHz Shader Clock Microsoft DirectX 11 Support