Just kidding. The brutal truth is that gamers don't take to shared memory solutions. Just forget it. No test required.
What's better - in relative terms, and when system memory is not a constraint - integrated graphics that is able to make use of more shared memory, or dedicated graphics that has less memory to utilise.
512MB dedicated or 1.5GB shared, where system memory is 8GB.
I think all I'm looking for here are theoritical answers; kindly refrain from "you'd have to run tests" responses!
Newbie with a limited budget to buy laptop