You not compare diferent processors basead in MIPS. these comparations not prove nothing in the question of what processor is more fast.

motive:
One processor use one instruciton to do a job, other processor need more instructions to realize the same job.

Note: MIPS, Clock speed, Quantity of poligons per second, are horrible forms of compare performace indiferent processors, and not the correct form of compare diferent processors performance.