Athlon II is a family of AMD multi-core 45 nm central processing units, which is aimed at the budget to mid-range market and is a complementary product lineup to the Phenom II.

There are two principal Athlon II dies: the dual-core Regor die with 1 MB L2 Cache per core and the four-core Propus with 512 KB per core.

Regor is a native dual-core design with lower TDP and additional L2 to offset the removal of L3 cache.

[2] The Athlon II x2 200e-220 chips have less L2 cache than the rest of the Regor line.

The triple-core Rana is derived from the Propus quad-core design, with one core disabled.