Athlon II X4 620 unlocked & overclocked....

[drfedja]

I would think that these would overclock to higher clocks if you got the cacheless core: The deneb ones are out of a really low bin and the propus-cored examples are the highest bin for their die. The only way I can think that that wouldn't be true is if the propus dies are tuned slightly different than the denebs, which may or may not be true. The propus chips also generally tend to be later production batches and would benefit from 10 or so additional weeks of process tuning at AMD.

A deneb running at 3.6 would definately be faster than a propus at 3.7-3.8 though, so I doubt the propus chips could compete with the deneb ones, higher clocks and all.

Most of Propus cores clocks lower than Deneb based. I did find no one Propus X4 whose can be LinX stable @3.7 or even at 3.8 GHz. Most of them clocks stable @3.6 GHz just like this sample.

Cacheless core has lower performance transistors, slightly different tuned process than core with L3 cache.