Would a I3 be good for Emulation?

[Kennerc]

My i3-4030u (Quad Thread, Duel Core, 1.9GHz) runs just about any Wii game in Dolphin at 720p60. However, you also need a decent graphics card.

Since you're using a "u" processor I believe you're on a laptop, do you have a graphic cards, or only the intel HD graphics?

 

[castdreams]

The newer i3s that are 2 cores/4 threads are actually pretty good for light gaming. I imagine they'd be able to handle Dolphin at the native resolution, but it might not be beefy enough to play games upscaled to 1080p. Just make sure you have a dedicated GPU you pair with it because the Intel HD integrated GPU probably won't cut it.