Socket P

Type	PGA
Chip form factors	Flip-chip pin grid array
Contacts	478 (not to be confused with the older Socket 478 or the similar Socket 479)
FSB frequency	400 MT/s, 533 MT/s, 667 MT/s, 800 MT/s, 1066 MT/s
Processors	Intel Core 2 Duo T5xx0*, T6xx0, T7xx0*, T8x00, T9xx0, P7xx0, P8xx0, P9xx0 ) * some use socket M--see List of Intel Core 2 microprocessors#Dual-Core Notebook processors Intel Core 2 Quad Q9x00 Intel Core 2 Extreme X7x00, X9x00, QX9300 Intel Pentium Dual-Core T23x0, T2410, T3x00, T4x00 Intel Celeron M
Predecessor	Socket M
Successor	rPGA 988A
This article is part of the CPU socket series

The Intel Socket P (mPGA478MN) is the mobile processor socket replacement for Core microarchitecture chips such as Core 2 Duo. It launched on May 9, 2007, as part of the Santa Rosa platform with the Merom and Penryn processors.

Technical specifications

The front-side bus (FSB) of CPUs that install in Socket P can run at 400, 533, 667, 800, or 1066 MT/s. By adapting the multiplier the frequency of the CPU can throttle up or down to save power, given that all Socket P CPUs support EIST, except for Celeron that do not support EIST. Socket P has 478 pins, but is not electrically pin-compatible with Socket M or Socket 478. Socket P is also known as a 478-pin Micro FCPGA or μFCPGA-478. On the plastic grid is printed mPGA478MN.