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Technology Stocks : Advanced Micro Devices - Moderated (AMD)
AMD 215.140.0%1:28 PM EST
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To: Tony Viola who wrote (61999)11/3/2001 12:40:29 PM
From: aburnerRead Replies (2) of 275872
 
Tony,
re: there is no standard for IPC. If you cut it in half, but double clock speed and all else remains equal, and you end up with the same throughput, who cares?

OK, let me try to separate apples from oranges in this discussion:

- What you're talking about - and what I agree with in general - is performance (IPC*clock speed) according to AMD.(*)

- John however was talking about MHz being an industry standard, or at least that's how I understood it. Someone correct me please if I'm wrong.

- What I tried to say was: If you underclock a P4 to 1,1 GHz and compare it to a PIII 1GHz the PIII will win in most benchmarks, i.e. has the better performance than the P4. So while the P4 would be faster in MHz than the PIII it's performance would not. That's why I think that with the introduction of the P4 MHz became meaningless or at least a lot less meaningful as an indicator for performance (as I already wrote it's not a good idea anyway), whereas earlier you could always count on processors from one generation having better performance than processors from the generation before (e.g. PIII better than PII, Pentium better than 486) at the same clock speed.

MHz is a measure for clock speed not for performance.

ABurner

(*)There's a discussion about why this is not a good definition initiated by Paul DeMone over at realworldtech.com
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