Nobody here is posting off-topic. Also, don't post if you can't take the proper time to consider what they OP is asking for. It just spreads misinformation.
If the OP has yet to build, I would recommend an i5 6600K or if he can stretch, an i7 6700K (not for Dolphin, but we are unsure how DX12 is going to perform in other games).
But of course, as he was talking about an existing lag problem, everyone apart from you realized he already has these parts. Which are in fact, excellent, and multiple times better than your setup.
So do everyone a favour and read the OP or don't bother posting.
If the OP has yet to build, I would recommend an i5 6600K or if he can stretch, an i7 6700K (not for Dolphin, but we are unsure how DX12 is going to perform in other games).
But of course, as he was talking about an existing lag problem, everyone apart from you realized he already has these parts. Which are in fact, excellent, and multiple times better than your setup.
So do everyone a favour and read the OP or don't bother posting.