EVGA GeForce GTX 770 Superclocked 2GB GDDR5 256bit, Dual-Link DVI-I, DVI-D, HDMI,DP, SLI Ready Graphics Card (02G-P4-3771-KR) Microsoft DirectX 12 API (feature level 11_0) Support Base Clock: 1085 MHz Boost Clock: 1137 MHz Memory Clock: 7010 MHz Effective CUDA Cores: 1536 2048MB GDDR5 256bit Memory NVIDIA TXAA, NVIDIA GPU Boost 2.0, NVIDIA PhysX, NVIDIA FXAA, NVIDIA Adaptive Vertical Sync, NVIDIA Surround, NVIDIA 3D Vision Ready, NVIDIA 3-Way SLI Ready, NVIDIA CUDA Technologies PCI express 3.0