i have one of these integrated intel graphics cards and i run 125 fps solid on most maps. The only drop i have is when i change my screen res but then its only down to 90 to 100.
My settings arn't altered in anyway to give me 125 fps.
I have an intel duel core 3ghz and 4gb ddr3 ram.
People slate integrated graphics because that's the thing to do but iv had no problem with what i have.