Quote Originally Posted by Bo_Fox View Post
Yeah, why does it take so long for ATI to make a chip that is just slightly larger than the RV740 on 40nm? I mean, just maybe 50% larger chip, but with a delay of 6 months?? Hopefully, ATI learned a lesson for not releasing the RV770 any sooner on 55nm (8 month gap after releasing the higher-clocked RV670 on 55nm). ATI must've been desperately waiting for GDDR5 memory after all, I guess, for more "attractive-ness" and cheaper 256-bit interface that requires less pins and slightly smaller die size "real-estate".
Because the 40nm aint as good as you think yet. I bet yield and quality from TSMC is still somewhat close to the trash on 40nm. They had problems so long and still struggles.