a SIMD in ATi's architecture is a 16 wide vector with 5 VLIW units each. 16*5=80
there are 4 SIMDs in rv670/r600, 10 for rv770, and 20 for cypress.
my area estimate for a single SIMD core including tmu's is ~16mm2 and the area of the gpu core in bobcat is ~30mm2. 160sp or 80sp is what i would be guessing, preferably 160.
it will be interesting to see if they go for 80sp but go for 8 tmu's and 4 rops. i think that will be more likely.
Bookmarks