Author: Andrew Williams
Date: 14:47:08 02/09/04
Go up one level in this thread
On February 09, 2004 at 17:33:56, Aaron Gordon wrote: >On February 09, 2004 at 15:28:21, Frank Phillips wrote: > >>On February 09, 2004 at 14:23:55, Aloisio Ponti Lopes wrote: >> >>>... by releasing their processors at the same speed in GHz ? >>> >>>As a consumer I can`t understand that. It seems to me that AMD`s problem is the >>>heat issue... so the important thing to do when buying an AMD processor is to >>>liquid-cool it or get some sort of special (refrigerated) case to build the >>>system, if you want to push it to the limit by overclocking ? >> >>Are you sure an AMD cpu produces more heat than Intel, at the same performance >>rating? > >Athlon 64 3400+ is faster than the Pentium 4 3.4GHz E (New Prescott CPU) and >runs MUCH cooler. The Athlon 64 3400+ is 89 watts compared to the P4-3.4E's 127 >watts. The P4 is slower and dumps over 40% more heat. Way to go Intel. :) If you >think about it.. MHz for MHz the P3 is faster and cooler than the P4.. and >Intels new "revised" P4 is slower and hotter than the old P4. Seems like they >keep taking steps backwards. By 2006 I predict Intel will end up with 386 >processors again but running 15GHz and will need liquid nitrogen cooling. :) > >Almost forgot to mention.. when you're not using your CPU or doing something not >so cpu intensive the Athlon 64 (if the option is enabled) will clock your CPU >down in steps (you won't notice the speed decrease). This allows the processor >to go down to about 35 watts from 89. I'd love this option on my cpu.. I >personally don't like dumping tons of heat into the air when I'm typing up stuff >on the CCC, checking email, listening to mp3s, etc. > While this is certainly a useful feature, I nearly had a heart-attack when, five minutes before the start of CCT6, I did this: andrew/chess> cat /proc/cpuinfo processor : 0 vendor_id : AuthenticAMD cpu family : 15 model : 4 model name : AMD Athlon(tm) 64 Processor 3200+ stepping : 8 cpu MHz : 800 ????????????????????????????? cache size : 1024 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall mmxext lm 3dnowext 3dnow bogomips : 1593 Of course, as soon as PM starts thinking, the 800 goes up to 2000! Andrew
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