EVGA GeForce GTX 660 SUPERCLOCKED 2048MB GDDR5 DVI HDMI DP Graphics Card 02G-P4-2662-KR Microsoft DirectX 12 API (feature level 11_0) Support Base Clock: 1046 MHz Boost Clock: 1111 Memory Clock: 6008 MHz CUDA Cores: 960 PCI-Express 3.0