GeForce GTX 670 reference card
Nvidia's GeForce GTX 670 reference card is about as long as the GeForce GTX 680. On the back you can see that the PCB is a bit shorter, however, particularly the part that regulates the power supply for the GPU.
Just like the GTX 680 reference card, the GTX 670 features two DVI connector, one HDMI 1.4 connector, and DisplayPort 1.2 connector. Of course it is still possible to connect up to four monitors simultaneously. On the back there are two 6-pin PEG power connectors. Two SLI connectors are present for the SLI configurations.
The cooler works according to the wind tunnel principle, with a radial fan on the back blowing air through a heatsink and out of the case. The GeForce GTX 670 reference card we received makes an annoying humming sound, that we also heard on the identical Point of View card (see next page). Luckily, most of Nvidia's partners use a different cooler.
The GeForce GTX 670 has a TDP of 170 watts, which is 25 watts below that of the GeForce GTX 680. Contrary to what was the case with the GeForce GTX 680, Nvidia has allowed its partners to create their own designs of the GeForce GTX 670 right off the bat. That's why most GeForce GTX 670 cards that go on sale today use neither Nvidia's standard cooler nor their PCB design.