Chipset GeForce GTX 980 Ti Core Clock Boost:1279 / Base: 1190 MHz in OC Mode Boost:1241 / Base: 1152 MHz in Gaming Mode Memory Clock 7010 MHz Process Technology 28 nm Memory Size 6 GB Memory Bus 384 bit Card Bus PCI-E 3.0 Memory Type GDDR5 DirectX 12 OpenGL 4.4 PCB Form ATX Digital max resolution 4096 X 2160 Analog max resolution 2048 x 1536 Multi-view 4 I/O Dual-link DVI-I / Dual-link DVI-D / HDMI / DisplayPort*3 Card size H=42mm, L=309mm, W=135 mm Power requirement 600W(with two 8-pin external power connectors)