600 mhz vs 800 mhz

[TylerHF765]

so, I have an 800mhz iBook and the power button broke off the logic board, so i need to buy a new logic board. The new 800 logic board are rediculously expensive to spend on an older laptop, and I found a 600 logic board for cheep and I was wondering the main differences between them. (including AC and Battery wattage) Thanks. :apple:

[alphaod]

The only different you will find will be your computer will feel 25% slower (not to mention it will be 25% slower)