If Apple use these CPUs they'll have higher clock speeds, They get to use special "P" versions...
The purpose of extreme over-clocking is to see the potential of the said cores in relation to rumoured speeds.
Refer to
http://www.theinquirer.net/?article=14245 as an example for bring rumours into practise (@retail's stage). (PS; this is not the first time i.e. A64/FX @~3.1Ghz point scorers in 3DMark community, but with non-air cooled solutions)
Does PegyII/A1-XE locks Memory/AGP/PCI clock speeds to 133Mhz/66Mhz/33Mhz respectively while increasing CPU’s FSB?
I wonder IF Moto’s PPC 7447A @1.6Ghz** vs IBM’s PPC 970 @1.6Ghz could spark price war similar to AMD vs Intel but at a minor scale i.e. due to products overlap.
**o/c at this time.