What ever the OEM is multiplier is unlocked and the Retail isn't according to the reviews.....
OEM=
Low Power Barton 2800+ (mobile/desktop hybrid cpu) 1.5
runs ~45C under full load.
also the chip i received is in fact UNlocked!
I don't know why your looking at those CPU's, The Mobile Bartons cost less, unlocked, less voltage and OC the best. Even if your not going to OC the Mobiles run cooler.