I was able to do a bit more testing with a few extra titles and here's my overall conclusive rundown:
Demons Souls - didn't get to test this one more but overall it runs well aside from the physics issues.
Drakengard 3 - had a noticeable improvement.
MGS4 - no perceived...
Mmy performance findings so far:
Demons Souls - framerate runs better across the board, breaking things and triggering engine physics still chugs it briefly. This is more than probably a CPU thing.
Metal Gear Solid 4 - framerate was largely the same, any performance increase or...