New radeon7970 has FMA replacing old Vector Vliw5 with new scalar arch. Radeon7970 is only 20% faster than gtx580 and less programmable, what to do against ftx600(2,5x faster). Tessellation is a control engine, not an execution unit, the main program runs on shaders, more flops=more speed. Many GB-ram has nothing to do with speed. And radeon does not work on Linux.
No announcement yet.