Socket 423 is a 423-pin CPU socket used by Intel's first generation of Pentium 4 processors based on the Willamette core. This socket was short-lived,...

815 Chipset Family" (PDF). Intel. Retrieved May 4, 2009. "423 Pin Socket (PGA423) Design Guidelines" (PDF). Intel. Archived (PDF) from the original on December...

256 KB Advanced Transfer cache (integrated) Processor package Style was PGA423, PGA478 System bus clock rate 400 MHz SSE2 SIMD Extensions 42 million transistors...