AMD this morning sought to challenge Intel's control of the low-end processor space with eight new Athlon II processors. The new range pushes costs and power use lower, and is headlined by the Athlon II X4 600e and 605e. These clock at just 2.2GHz and 2.3GHz each but have four cores that combined use at most 45W of power and fit in very tight spaces; they also only cost $133 and $143 in bulk.