Silicon Investor (SI) -- The First Internet Community

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.

Technology Stocks : Advanced Micro Devices - Moderated (AMD) -- Ignore unavailable to you. Want to Upgrade?

To: Petz who wrote (74907)	3/18/2002 9:51:38 PM
From: AK2004	Respond to of 275872

John re: Ahem... 4900 is less than 15% above 4300, not "more than 20%!" I guess fyodor's point was that if intel's dP/df is consistently larger than athlons dP/dQf then current advantage would disappear quickly given the accumulated effect regardless if it is 5% or or 20% per speedgrade. re: The AMD quantispeed ratings are not governed by any formula that says that 66IntelMhz=100AMDMhz exactly, while fyodor was saying that amd would have to change the formula amd's rep at one point said that they created a simplified QT formula which they would use over limited range of frequencies and after that it would be revised. fyodor suggested to chart quake fps on log scale which would produce simple nice relationship. Works nicely and shows that willy curve is parallel shift of NW and the slope is higher than amds. It also showed that at the end there is no difference in slopes between athlon and nw. My point was that it is not the proof that tbird scales the same as nw but rather that data is inconclusive which brings to your point of "some architectural improvement" also even if the fyodor's approach is not without a merit can it be used when comparing the scalability of a product that is on it's way out with a product that supposed to have much longer life span. I guess I am repeating the same point as before - confidence and std. Regards -Albert

To: Petz who wrote (74907)	3/19/2002 8:10:43 AM
From: fyodor_	Respond to of 275872

Petz: with Northwood vs. Palomino, "1.5 qF per F" is over. It seems we agree. I'm pretty confident that there will be some archtectural improvements in TBred which give it 10% additional IPC, so much the more if they increase the bus speed. This should allow AMD to continue to use round numbers for their model ratings. I also assume there will be some improvements. My point was simply that there needs to be so, if the current formula is going to continued. (I'm not sure what you dispute about the formula for deriving quantispeed ratings&#133 ) -fyo