I just upgraded my son's machine to a P-4, 3.0 Gig, 775 Prescott with 1 mg. cache, but could have gotten a 3.2 Gig older style chip with only 512 L-2 cache. Is that the Northwood? Anywhooo .. does the extra cache and newer design make up for or excede the .2 Gig of speed that is lost? Which would you choose? Thanks 
