EVGA GeForce GTX 780 Classified Hydro Copper 3072MB DP+HDMI+D-I+D-D Graphics Card 03G-P4-3789-KR Microsoft DirectX 12 API (feature level 11_0) Support Base Clock: 993 MHz Boost Clock: 1046 MHz Memory Clock: 6008 MHz Effective CUDA Cores: 2304 3072MB GDDR5 384bit Memory NVIDIA TXAA, NVIDIA GPU Boost 2.0, NVIDIA PhysX, NVIDIA FXAA, NVIDIA Adaptive Verticle Sync, NVIDIA Surround, NVIDIA 3D Vision Ready, NVIDIA 3-Way SLI Ready, NVIDIA CUDA Technologies PCI express 3.0