There's more than a few floating around .. let's combine them together.
The ones I'm currently testing help add memory.
iMinMemoryPageSize=100000
iMaxMemoryPageSize=5000000
iMaxAllocatedMemoryBytes=1800000000
Give it a shot.
Also, have heard (and experienced) a small but significant FPS gain from disabling the 360 controller within the in-game settings.








