Originally Posted by Viral
Kyle from [H] says it is 680,
If it's actually $400 (with a die size below Tahiti and only 256-bit memory bus that seems quite possible) this will surely shake things up! That would mean 7970 coming down $150 and everything else following by around $100-50 or so.
If its $399 its not faster, if its faster it will be $599 or higher. Pretty much that simple.