Graphics Engine Nvidia GeForce GTX 1660 Ti Bus Standard PCI Express 3.0 OpenGL OpenGL4.5 Video Memory GDDR6 6GB Engine Clock OC Mode - GPU Boost Clock : 1830 MHz , GPU Base Clock : 1530 MHz Gaming Mode (Default) - GPU Boost Clock : 1800 MHz , GPU Base Clock : 1500 MHz CUDA Core 1536 Memory Clock 12002 MHz Memory Interface 192-bit Resolution Digital Max Resolution:7680x4320 Interface HDMI Output : Yes x 2 (Native) (HDMI 2.0b) Display Port : Yes x 2 (Native) (DisplayPort 1.4) HDCP Support : Yes (2.2) Maximum Display Support 4 NVlink/ Crossfire Support No Recommended PSU 450W Power Connectors 1 x 8-pin Accessories 1 x ROG Velcro Hook & Loop 1 x CD 1 x Quick Guide Software Asus GPU Tweak II & Driver Dimensions 11.9 " x 5.2 " x 1.97 " Inch 30.1 x 13.2 x 5 Centimeter.