The 1.4v operation is not a problem, we are told the first generation of 65nm parts are set for 1.35v, so if they had to go up to 1.4, well it is not a problem worth noting really. (For the pedantic, (1.4^2)/(1.35^2) ~= 1.075, or about an 8% increase)More info over here.
More likely, the source had a mobo with a BIOS that rounded off a tad aggressively. In any case, we are told this version of the 65nm process is on target.
There is another bit to think about though, I said this version of 65, there is a new one coming early next year. That one will dramatically drop voltage and wattage consumed, leading to quad core parts that are on track for the speeds and power AMD promised.
AMD 65nm processors on track
Posted on Tuesday, September 05 2006 @ 20:22 CEST by Thomas De Maesschalck