I agree with you. I play Far Cry with no problems and that beats the heck out of the laptop.
Having done some research on driverheaven.net, we should try disabling the "AI" feature in the drivers. (I am pretty sure it is exposed in the latest Omega driver set.)
4.12 drivers (w/AI off) also seem to fix the problem for some users, but there is no usable notebook variety of 4.12 yet. (or, it seems, 4.11)
I must sleep... will try this fix in the morning.