2011-03-05, 06:33
Subliminal Aura Wrote:Come on boys anyone with any decent level of knowledge know why allocating more RAM yields better x264 decoding performance as the two are not directly correlated once you've gone past screen fill memory.
The 512mb level seems to better utilize shared memory. If you are talking a dedicated VRAM that is a different story. It has nothing to do with the screen fill needs, and much more to do with bioses and drivers (I think). There is no downside to the 512mb value in the bios (since its a guarantee XBMC will have enough afterwards) so there is no reason to not do it and hopefully avoid hitting some problem.
But search the forums, there are problems with many mobos if its not manually set on 512. And for the record, Aero does take less GPU resources than decoding. That is why GMA900s can do it, but x264 eats their lunch...