Formerly About Advanced Micro Devices Message Board

STOCKTALK

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor. We ask that you disable ad blocking while on Silicon Investor in the best interests of our community. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.

Politics : Formerly About Advanced Micro Devices

Public Reply Prvt Reply Mark as Last Read File

Previous 10 Next 10 Previous Next

To: Elmer who wrote (35505)	8/5/1998 12:11:00 AM
From: Petz	Read Replies (4) of 1573433

K6-2 300 MHz leaves Pentium II-333 IN THE DUST. anandtech.com WINSTONE 98 SCORES AMD K6-2-333: 23.1 AMD K6-2-300: 23.0 Intel Pentium II-333: 22 Intel Celeron 300: 18.3 Intel systems used the top-of-the-line ABIT BX-6 motherboard AMD systems used the $99 FIC VA-503+ motherboard As for estimating 15% performance gain for K6-3, to be truthful, the 15% estimate was what is known as a WAG, but here's a more careful analysis. 1. I've heard 3-5% due to architectural improvements 2. Going from 66 MHz to 100 MHz gains 10% on Winstone 98. (see above URL) Solve 1.1(2x/3 + 1) = x+1 (2.2/3)x + 1.1 = x+1 0.1=0.26667x x=0.375 x/(1+x) is the fraction of runtime attributable to L2 cache access penalty at 66 MHz. If the L2 cache access were cut by a factor of 3 (on a 300 MHz K6-3), its runtime would be 1 + 2x/9 = 13/12 when x=3/8 compared to 1 + 2x/3 = 15/12 when x=3/8 Thus the actual speedup ratio is 15:13 or 15% not even counting the 3-5% speedup due to other core improvements.* So, I change my estimate to 18%. Petz

Report TOU Violation

Share This Post

Public Reply Prvt Reply Mark as Last Read File

Previous 10 Next 10 Previous Next