This is an AMD Athlon II X4 645 desktop processor.

Key Specifications

Model Number: ADX645WFK42GM

Cores / Threads: 4 Cores / 4 Threads

Base Clock Speed: 3.1 GHz

Socket: Socket AM3 (also backward compatible with Socket AM2+)

Architecture: Propus (45nm process node)

Thermal Design Power (TDP): 95 W

L2 Cache: 2 MB (512 KB per core)

L3 Cache: None (a defining characteristic of the Athlon II series compared to the Phenom II line)

Additional Markings on the Chip

NADIC AD 1141DPM: Manufacturing batch and date code (produced around week 41 of 2011).

Diffused in Germany, Made in Malaysia: Indicates the silicon wafer was fabricated at AMD's Fab 36/Module 1 in Dresden, Germany, and then assembled and tested in Malaysia.