We were naturally quite cautious given a new process which lowers the internal voltage and makes it more susceptible to over-voltage when overclocking. We weren't prepared to sacrifice such a particularly expensive CPU so we upped the voltage to a rather tame 1.435V on our Asus Blitz Extreme, with a Zalman CNPS9700 CPU heatsink.
It just kept going.
4GHz, 4.1, 4.25... 4.35. Literally 10 minutes work with a combination of front side bus and multiplier and we had the machine booting into Windows and Prime95ing at 4,350MHz. Our CPU is an engineering sample so we'll come back to overclocking when better price-performance retail versions come available, but with more voltage, better cooling and obviously more time to investigate the limits these things should fly.
Those who can get hold of them and are brave enough are going to have the closest thing to home super computers ever available - £500 should buy you a Vapochill or hardcore TEC/watercooling setup which isn't too far out of some people's reach. It'll naturally change the landscape of CPU performance e-peen on the net as 3DMark or SuperPi scores will get inevitably re-broken in the near future.
For the rest of us though, the more affordable desktop versions should arrive early next year which is a bit of a problem: Crysis and UT3 are out in the next few weeks, so what do you do? Wait until Christmas where some of the younger readers will have a bit more cash from the family and upgrade then (those of us who are older, it will be considerably less money though) or bite the bullet for a few months and get an Q6600 G0 or E6750 and clock the nuts off it. A cheap P35 board and one of these could make for a good interim solution until then because remember AMD has yet to show its hand as well
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