In mainstream consumer CPUs, maybe the clocks have stabilized (which IS a good thing, we
already waste too much power just to do office work).
Look at the IBM Power6 for some high-clock cores...
Posted Feb 21, 2008 9:53 UTC (Thu) by renox (subscriber, #23785)
[Link]
>Look at the IBM Power6 for some high-clock cores...
Except that apparently they had a lot of difficulty ramping up the clock..
Plus their CPU does *in order* integer processing which induce a loss of efficiency..
It'd be interesting to have a study which analyse whether going in order for integer
processing to increase the clock really did improve performance or if it was just a marketing
gimmick a la P4.
Power 6 clock high-score and real performance
Posted Feb 23, 2008 17:14 UTC (Sat) by anton (guest, #25547)
[Link]
It'd be interesting to have a study which analyse whether
going in order for integer processing to increase the clock really did
improve performance
Take a look at SPEC CPU
2006 results. Last I looked, a 4.7GHz Power6 had similar speed to a 3GHz Core 2
Duo 6850 in both SPECint2006 and SPECfp2006 results.