Chipset GeForce GTX 670 PCB Form ATX Core Clock Base clock: 980 MHz Boost clock: 1058 MHz Shader Clock N/A Memory Clock 6008 MHz Process Technology 28 nm Memory Size 2048MB Memory Bus 256 bit Card Bus PCI-E 3.0 Memory Type GDDR5 DirectX 11 OpenGL 4.2 I/O Dual-link DVI-I *1 DVI-D *1 DisplayPort *1 HDMI *1 Digital max resolution 2560 x 1600 Analog max resolution 2048 x 1536 Multi-view 4 Tools N/A Card size H=43 mm, L=275 mm, W=136.6 mm Power requirement 550 W