I don't think there's any indication the latest Mobiles do the best. The best ones were around 0340-0352, IQYHA. In fact, I recently picked up an IQYHA XP2600-M here in Japan since it was a 0349. I've two in that range and they do 2600 at 1.65-1.78 volts or so (on water).
Across a narrow set of example processors, the pattern might be hard to see. But it is well known that process yields improve over time, newer processors overclocking higher on average.
Anecdotal example; the very newest Mobile Bartons seem to overclock to the same speeds, needing less VCORE then older Mobile Bartons.
I had two chips, dated a year apart (0348/0447), the older one did 2700 MHz stably with 1.9V, the newer one did 2700 MHz stably with 1.85V. This is hardly proof though; two processors are way too small a sample to mean very much.
Now, anecdotal evidence is not worth much when looking for a straight-up and definitve answer.
The trend may well be a perceived one; but I personally believe very firmly that the newer processor is a better gamble (luck always playing a large role in a processor's cabability), then the older processor. Same thing with Video card cores, RAM, and motherboard chipsets.
It has served me well, thus far, in purchasing new parts that overclock signifigantly better then the older parts which they are replacing.
c627627
Woop there it is, a 2005 assembled mobile.
Indeed.
OC Detective
If by making you mean assembling then you might be correct - but they stopped fabricating them a few months ago.
A 2005 assembled processor.
I got the confirmation email from AMD, just waiting for a human being to answer the question now. I am worried that they may have blacklisted my email adress: I send them quite a few questions.