
The shroud suspends two 120 mm high-sweep fans that blow air on to two heatsinks with highly dense aluminum fin arrays to which heat is fed by copper heat pipes. The card draws power from three 8-pin PCI-Express power connectors. The card uses two NVIDIA GF110 GPUs with the same core configuration and clock profile as GeForce GTX 580, effectively making MARS II a dual-GTX 580, which also provides the overclocking headroom of a GTX 580, something impossible on a NVIDIA GeForce GTX 590.
source:www.techpowerup.com