EVGA GeForce GTX560Ti 448 Core CLASSIFIED ULTRA 1280MB GDDR5 SLI Graphics Cards 012-P3-2078-KR CLASSIFIED ULTRA Core Clock: 810MHz Memory Clock: 3900MHz CLASSIFIED ULTRA Shader Clock: 1620MHz CUDA Cores: 448 Microsoft DirectX 11 Support NVidia CUDA, PhysX, PureVideo HD, 3D VisionSurround ready Technologies NVidia 2-Way and 3-Way SLI ready DisplayPort 1.1a Connector HDMI 1.4a connector Two Dual-Link DVI-I HDCP capable connectors