So I've become really suspicious about any claims about performance done by Apple.
Also what games are you trying to play on it? All my M-series Macbooks have run games more than well enough with reasonable settings (and that has a lot more to do with OS bugs and the constraints of the form factor than with just the chipset).
The problem is two-fold, first the marketing bullshit does not match the reality and second the Apple converted will lie without even thinking about it to justify the outrageous price.
There are a lot of things I like about Apple hardware but the reality is that they can charge so much because there is a lot of mythology around their products and it just doesn't add up.
Now if only they be bothered to actually make software great (and not simpleton copies of what already exists), there would be an actual valid reason to unequivocally recommend their stuff but they can't be bothered since they already make too much money as it is.