EVGA GeForce GTX670 2048MB GDDR5 256bit, 2x Dual-Link DVI, HDMI, DP, 4-Way SLI Ready Graphics Card (02G-P4-2670-KR) Base Clock: 915MHz Boost Clock: 960MHz Memory Clock: 6008MHz Cuda Cores: 1344 PCIe 3.0 2048MB GDDR5 256bit Nvidia SMX Engine, Nvidia GPU Boost, NVidia Adaptive Verticle Sync, Nvidia Surround, Support for Concurrent Displays, Nvidia PhysX, Nvidia 3D Vision Ready, Nvidia SLI Ready, Nvidia CUDA Technology