Dolphin, the GameCube and Wii emulator - Forums

Ok, I think I will buy the Pentium G3220 and a dedicated GPU (GT 640). There is also a ZOTAC GeForce GTX 650 LP, but it is only available in the USA.

Edit: At which resolution can I play with a Core i3-4330 and the integrated GPU?

Depends on the game. Anywhere from 1x in the most demanding games (super mario galaxy for example) to 3x in the least demanding games (animal crossing for example).