Intel Socket G3

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Socket G3
Chip form factorsFlip-chip pin grid array
FSB protocolDMI
ProcessorsHaswell mobile
PredecessorrPGA 988B

This article is part of the CPU socket series

Socket G3, also known as rPGA 946B/947[1] or FCPGA 946,[2] is a socket for Intel microprocessors that supports Haswell-based mobile CPUs. Compatible SKUs have an 'M' suffix in the model number.[2]

Socket G3 is designed as a replacement for the Socket G2, which is also known as rPGA 988B. Socket G3 has holes to make contact with 946 or 947 pins of the processor's pin grid array (PGA).[1][3]

Lynx Point is the Platform Controller Hub (PCH) associated with Socket G3.[4]

Socket rPGA 947 has one extra pin hole, other than that it is identical to socket G3.

See also[edit]


  1. ^ a b Datasheet for Haswell M CPUs, see section 8.1, "Package Mechanical Specifications"
  2. ^ a b Intel ARK list of CPUs with socket FCPGA946
  3. ^ Test of PGA946 CPUs Intel Core i7-4700MQ
  4. ^ Knight, Shawn. "Leaked Intel slides detail Haswell's Lynx Point chipset". TechSpot. Retrieved 2014-01-19.

External links[edit]