Intel is fabricating the Prescott on huge 300mm wafers with its cutting edge 90-nanometer (90nm) strained silicon process. The 90nm process enables Intel to pack in more cache into Prescott. Prescott doubles current Pentium 4 cache figures with 16K of L1 and a whopping 1MB of L2 (as a comparison, the current L2 record holder for is AMD's Barton core with only 512K of L2). In order to fit such a large amount of cache into the core, Intel added a 7th copper layer paving the way for >100M transistor counts. Read more @ HW-Extreme