Zotac GeForce GTX 660 Ti 2GB GDDR5 PCI Express 3.0 HDMI Two dual-link DVI DisplayPort SLI Ready Graphics Card, ZT-60802-10P Graphics Cards ZT-60802-10P Engine Clock - Base Clock 928 MHz, Boost Clock 1006 MHz, Memory Clock - 6009 MHz (6.0Gbps) NVIDIA GPU Boost Technology, NVIDIA Adaptive Vertical Sync Technology, NVIDIA 3D Vision Surround Support Microsoft DirectX 11 support, OpenGL 4.2 Two dual-link DVI (DVI-I + DVI-D) + HDMI + DP Dual slot cooling solution, TM2 Canyon 3-Day game pass