FUD Zilla reports AMD will debut the Propus and Rana processors will be released in September. Propus is a 45nm quad-core without L3 cache, this chip will be launched as the Athlon II X4 600 series. Rana is a cut-down version of Propus, these Athlon II X3 400 series chips have three cores and 1.5MB L2 cache instead of 2MB.
The top speed of this CPU at launch is 2.8GHz and it only comes with 4x512KB L2 cache, total of 2MB but lacks L3 cache memory completely. This might be one of the smallest quad cores, at least from AMD, as L3 memory takes up a large portion of the CPU. Faster iterations might come later.
Rana is based on Propus and it’s a three core with 1.5MB L2 cache, no L3 cache and the top speed of 2.9GHz with a possibility to come at higher speeds.