Asus Nvidia GeForce GTX 680 DirectCU II Top Graphicsbr br Featurebr * GPU Tweak br * 2GB GDDR5 Memory br * NVIDIA GPU Boost br * NVIDIA 3D Vision Surround Readybr GTX680-DC2T-2GD5 2048MB DDR5 P CI-E 256bit DVI-I DVI-D HDMI DisplayPort activebr