The difference in processor performance is pretty signifigant. Having said that, the 2500k is a quad core 2nd gen that runs at 3.3Ghz and turbos to 3.7Ghz, compared to the M480 which is a dual core running at 2.66Ghz. Well first of all, the Dophin emulator actually recommends a Core i5 2500k or above for CPU to even get the 'best overall' game experience without running the games at full speed.
Is my computer powerful enough to run the wii emulators my specs are as follows Processor: Intel (R) Core (TM) i5 CPU M480 2.67 GHz 2.67 GHz with 4.0 GB RAM (3.80 used) and 64bit operating system. My computer shuts off like 10-20 minutes of playing games using the Dolphin emulator.