EVGA GeForce GTX 680 FTW LE 2048MB GDDR5 Dual Dual-Link DVI, mHDMI, DP, SLI Graphics Card (02G-P4-3684-KR) Base Clock: 1006 MHz Boost Clock: 1058 MHz Memory Clock: 6208 MHz CUDA Cores: 1536 PCI-Express 3.0 2048MB GDDR5 256 bit NVidia SMX Engine, NVidia GPU Boost, NVidia Adaptive Vertical Sync, NVidia Surround, Support for Concurrent Displays, NVidia PhysX, NVidia 3D Vision Ready, NVidia SLI Ready, NVidia CUDA Technology