My Dedicated Emulator PC build

[Shonumi]

You're basically getting one of the best CPUs you can get right for Dolphin. Most games will run fullspeed without even overclocking.

The only emulators you really need to worry about having adequate horsepower are Dolphin and PCSX2 (from the list of systems you want to emulate). Everything else won't even come close to taxing your PC. So basically you have nothing to worry about.

The only matter is how high do you want to raise your internal resolution and anti-aliasing in Dolphin and PCSX2.