Intel Core i5 iMac enough?

[Aftershocker]

(04-16-2014, 02:48 PM)KHg8m3r Wrote: You should look into BootCamp to use either Linux or Windows because of the reasons from AnyOldName3 said about OSX.
Windows would be the most customizable aspect for Dolphin, as it has the D3D backend that neither Linux or OSX have.

Yes, bootcamp is your friend and I would use Dolphin 3.5 as it still supports HLE and will be faster.