X86-Secret : ES Zone
P4 2.8 GHz LGA775 ES  (Week 41, Year 2003)   
INTEL CONFIDENTIAL / QJ23ES A4 / i'03 JM80547PG0721M / C341A18F

Here is an early sample of the Prescott core in LGA775 package. This CPU is clocked at 2.8 GHz and was produced one year before the official release. It comes with 1 MB of L2 cache, a 800 QDR FSB Bus and the (in)famous 31-stage pipeline core. This CPU comes with a CPUID of F32