Author: Vincent Diepeveen
Date: 03:55:18 06/17/04
Go up one level in this thread
On June 15, 2004 at 06:37:34, Tony Werten wrote: >On June 15, 2004 at 04:26:17, Joshua Shriver wrote: > >>I may bit missing something, but isn't a Centrino just a regular x86 CPU aimed >>for low-power consumption and something for wireless? If anything I'd think it >>would be slower. >> >>Guess I don't see how it could be faster, especially against a Xeon or even an >>Athlon. What is the size for the caches (L1 and L2), what ghz range is it? >> >>Not trying to sound condescending, I really dont understand it. > >Basicly, the next Intel processor will be based on the Pentium M processor, not >the P4. > >The P4 looked promissing, but has turned out not to have too much future >(basicly heat), Pentium M is the alternative. Where P4 is "as much clocks per >sec as possible" the PM is "as much work per clock as possible". > >And yes, there are big parallels with the AMD processors. A very funny one is >that now Ghz seem to be less important, Intel wants to start using a performance >rating. Please list the processors in order of L2 cache speed and you'll realize that speed still is of overwhelming importance. List them at random access speed for L2 cache (some processors are faster in streaming than random access in their caches like P4). Basically opteron has fastest L2 cache which can deliver each 13 cycles data (4 reads simultaneously even if i understand well). No other processor can deliver data from L2 cache that fast. So clock speed still is of overwhelming importance. >A PM 1.4 laptop seems to have about the same speed as an AMD2600+, with 1 big >difference. Whereas my AMD does it's helicopter imitation, I can't even hear the >fan of the PM. > >I let it run my chessprogram for a few hours at my desk, and the fan never >started to make a noise. My p4 laptop (also Dell) uses its fan about 50% of the >time (running office applications, no chessprograms) > >Tony > >> >>Sincerely, >>Joshua Shriver >> >>On June 15, 2004 at 04:17:09, Gian-Carlo Pascutto wrote: >> >>>On June 14, 2004 at 21:07:03, David Mitchell wrote: >>> >>>>2) Xeon >>> >>>>4) Centrino >>> >>>Centrino should easily outperform Xeon clock for clock. >>> >>>For some programs it will even outperform an Opteron clock for clock >>>in 32 bit mode. >>> >>>-- >>>GCP
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