Which CPU to get for RPCS3?

I got 23FPS in Metal Slug 3 and it's a very light-weight game . CPU is Haswell Core i7 4700MQ (4 cores 8 threads) @ 3.6GHz (OC mode) . Here is the benchmark test
With AMD FX 8350 (8 cores 8 threads) @ 4.5GHz , I got 15FPS
So I guess you will need 3x horsepower at least . No CPU on earth can run RPCS3 atm