1. A method for reducing power in multi-way set associative arrays comprising: (a) detecting when a next cache access, following a previous cache access, will be taken from a first same cache way that the previous cache access took; (b) signaling all cache ways, except said first same cache way, not to access information from their respective arrays when step (a) occurs; (c) signaling all tag arrays to not access information from their respective arrays when step (a) occurs; (d) disabling power to all compare circuits in said multi-way associative arrays when step (a) occurs.