What i said was that all those new games dont use all of the cores at 100%! Each and EVERY core is being used at around 40-60%.
What are you on about, nothing utilises quad's? No, they're arent many apps that utilise quads, but some do like Adobe after effects, Premier and other video encoding/editing software. As for games, all new games utilise quads, World in Conflict, UT3, Crysis all do! I could run them all show you a nice screenshot of them but heres one of UT.
Frame rates, when everything is on the highest settings the frame rates drop to around 40fps and thats not good since the game becomes almost like there lag. I have world details and textures as 4/5.