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Pentium III 450 MHz ES (Week 44, Year 1998)
Intel Confidential Q817ES / 48449485-0051 A4 / i '98 80525PY450512
This engineering sample is an early Pentium III in a SECC2 Pentium II cartridge. It comes with 512 KB de L2 cache on the PCB and a Katmai core. Sampled in mid-Q4'98, the Pentium III 450 was officialy announced on Feb, 26th 1999. The Q817ES is the final ES stepping before production for kB0-based stepping CPUs.