Radeon HD 6950 can be hacked into a 6970 with BIOS flash
 

Just a couple of weeks ago AMD officially launched the new Cayman-based Radeon 6970 and 6950 graphics cards as part of their high-end, enthusiast level lineup. Both products are built on the exact same 40nm GPU silicon and are equipped with 2GB of GDDR5 memory as well as 256-bit bus. But differences in shader count and clock frequencies set these two into their own price and performance bracket -- $300 vs. $370 and a around a 10-16% performance margin.

http://www.techspot.com/news/41733-r...ios-flash.html