The quad-core, four-thread FX 4100 is a socket AM3+ chip with a 3.8 GHz boost clock ... 3D V-Cache-imbued powerhouse of a ...

FM2+, AM3+). Replacing all of those was AM4—a square socket, 40x40 mm, home to 1331 contact pins. The idea was to have one socket for all desktop processors and not just for the first generation ...