We've come across an early listing of AMD's upcoming dual-GPU Hemlock card, or the Radeon HD 5970 to be exact. AMD recently dropped the X2 moniker from its dual-GPU cards for its upcoming generations, which translates into a few more numbers for consumers to be confused by.
Bear in mind that the specifications are still unofficial, so these numbers can be taken with a grain of salt. The HD 5970 apparently packs dual RV870 chips each clocked at 725MHz and 2GB of GDDR5 memory clocked at 1000MHz on dual 256-bit buses. If you're thinking these are HD 5850 clocks, you are right. However, the HD 5970 has 2 x 1600 stream processors and 2 x 80 texture units, twice that of an HD 5870.
Although there is still no word on power consumption levels, we are anticipating a number slightly more than 300W. AMD is still facing serious shortages of its HD 5000-series cards, so don't expect to be able to get your hands on a dual-GPU HD 5970 anytime soon. Nonetheless, Hemlock will secure the GPU performance crown for AMD over the next couple of months.
http://www.pcworld.in/product/review/ati-radeon-hd-5970
