Socket 478
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Socket 478, also known as mPGA478 or mPGA478B, is a 478-contact CPU socket used for Intel's Pentium 4 and Celeron series CPUs.
Socket 478 was launched in August 2001 in advance of the Northwood core to compete with AMD's 462-pin Socket A and their... Wikipedia
Chip form factors: Flip-chip pin grid array (FC-PGA2 or FC-PGA4)
Designed by: Intel
FSB frequency: 400 MT/s; 533 MT/s; 800 MT/s
FSB protocol: AGTL+
Predecessor: Socket 423
Processors: Pentium 4 (1.4–3.4 GHz); Celeron (1.7–2.8 GHz); Celeron D (2.13–3.2 GHz); Pentium 4 Extreme Edition (3.2–3.4 GHz)
Release date: 2001