Arjan mentioned that every composite that is rendered within the game is placed solely upon the SPUs to lock in the framerate at a solid 30 FPS. During small battles, one or two SPUs will pick up a majority of the action, but during heavy firefights with large explosions and numerous characters onscreen, all six SPUs will pick up the load and balance everything accurately. Surprisingly, even within the heaviest firefight onscreen, Arjan pointed out that the largest load on each one of the SPUs didn't exceed 60%, which ensured that the framerate remained consistent throughout the game.
