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.
[1][3] Lynx Point is the Platform Controller Hub (PCH) associated with Socket G3.
It is the last pin grid array socket for Intel's mobile processors - all mobile processors in microarchitectures succeeding Haswell are exclusively available in BGA packaging.
AMD also adopted the same practice, starting with their Steamroller microarchitecture.