vss....where's you info 'bout the improved cache architecture?
For what it's worth the 1.3ghz are NOT pally's. There's been discussion (time, and time again) about a lengthened pipeline (to allow it to ramp more easily), but that lowers IPC, increases power consumption, which is something which we've been told is the opposite of pally. The thought of adding another ALU is not very credible, because that would increase die size and power consumption rather considerably.
So far, there's little that can be certain, and that is the fact that power consumption will be lower. Other than that NOTHING is proven so far. AMD's been pretty tight lipped.