Your laptop specs are fine . However , your laptop cooling components can't handle both discrete GPU + high-end CPU at full load since Macbook Pro Retina isn't a gaming laptop but a multi-media one
Make sure you read this guide
i7 4850HQ @ 2.3GHz Turbo Boost :
_3.3GHz (4 cores active)
_3.4GHz (2 cores active)
_3.5GHz (only 1 core)
Zelda WW isn't a GPU intensive game and Intel Iris Pro is almost on par with discrete GT 650M . Therefore , you don't have to enable GT 750M . If you enable it , your laptop will run really hot (inside , not outside . Use Realtemp to check) .
Make sure you read this guide
i7 4850HQ @ 2.3GHz Turbo Boost :
_3.3GHz (4 cores active)
_3.4GHz (2 cores active)
_3.5GHz (only 1 core)
Zelda WW isn't a GPU intensive game and Intel Iris Pro is almost on par with discrete GT 650M . Therefore , you don't have to enable GT 750M . If you enable it , your laptop will run really hot (inside , not outside . Use Realtemp to check) .
Laptop: (Show Spoiler)
Mini PC :: (Show Spoiler)