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Subject: Re: Intel Pent 4/2533 outperforms AMD XP 2100+ easily - Tom's Hardware

Author: Roy Eassa

Date: 09:51:42 05/10/02

Go up one level in this thread


On May 10, 2002 at 12:31:23, Keith Evans wrote:

>On May 09, 2002 at 10:46:58, Roy Eassa wrote:
>
>>
>>Just a point of math: if x is 70% higher than y, then y is about 58.8% lower
>>than x.
>>
>>(Earlier you said that the K7 was 70% faster than the P4.  If that's true, then
>>it cannot also be true that the P4 is 70% slower than the K7.)
>>
>>BTW, I am making NO statement in the Intel vs. AMD war, only a math comment.
>>
>
>I would say that y is about 42% lower than x.
>
>x is 70% higher than y: x = (1 + 0.70)y
>y is 42% lower than x:  y = (1 - 0.42)x
>


You're right.  I said "58.8% slower" when I should have said "58.8% as fast" or
"41.2% slower".

My math was dumb, but my original point is even stronger with your correction:
If x is 70% faster than y, you *cannot* say that y is thus 70% slower than x.
It's much less than that.



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