INTEL CONFIDENTIAL - QU47ES COSTA RICA - 3028A561-0340 - 80528PC1.2G0K - 4028A381

Here is a pre-qualification sample built on the Willamette B0 stepping. The first commercial stepping was B2 at launch. This CPU is clocked at 1.2 GHz, an unreleased frequency. The lowest final frequency was 1.3 GHz and the overall performance of this CPU was really low.