In a Resistance: Fall of Man document detailing the game's development, Insomniac Games has revealed that only "10-20% total SPU utilization" was achieved for the PlayStation 3 launch title.
SPU utilization is something Insomniac has openly discussed in the past, last November telling VideoGamer.com that it's a process that will see "major benefits" for years to come.
"The tech and gameplay teams have moved tons of things over to the SPUs that used to run on the PPU. Collision and physics are entirely running on SPUs now, which allows us to put much more on the screen at once than we were able to with Resistance. Moving more and more code to the SPUs is an ongoing process and I think we'll continue to see major benefits from this for several more years," said Insomniac's Chief Creative Officer Brian Hastings in our exclusive interview.
Looking at the newly released Resistance 2 screens Insomniac has certainly been busy optimizing those SPUs; the game looks stunning.