FX 4100 1,221 Athlon X4 860K 1,596 Specifications Full list of technical specs summary FX 4100 vs Athlon X4 860K Clock speed 3.6 GHz 3.7 GHz Turbo clock speed 3.8 GHz 4 GHz Cores Quad core Quad core Is unlocked Yes Yes features Has a NXĬPUs, similar to AMD FX-4100 The AMD FX-4100 is based on Zambezi core, and it fits into Socket AM3+.