The card has dual slot cooler and just as HD5870 needs two PCIe power plugs to get enough juice, so does it. It works at 725MHz core and 1000MHz GDDR5 memory. The chips are the same as on the Radeon HD 5870, 32Mx32 and the memory bus is 256-bit. This part of the spec didn't change from 4870, RV770 times.
The card will usually come with Dirt 2 coupon, DVI to VGA adapter, crossfire bridge and some additional cables would not be a surprise.