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

To: THE WATSONYOUTH who wrote (39509)	5/14/2001 9:44:49 AM
From: dale_laroy	Respond to of 275872

>Typically, within the range of voltages that a processor operates, the peak speed grade increases at the square of the voltage. This would predict a 1.56 MHz peak speed grade at 1.75v if the peak speed grade at 1.4v is 1.0 GHz. That's not been my experience.< I am going by a very old Byte Magazine article. I believe it was back about 1994. >I hope 1GHz is not the max speed grade at 1.4V that fits under the limits of power dissipation. If that is the case, I think it was a bit disingenuous for Sanders to say that AMD can match any mobile frequency Intel can release.< I believe that the server/workstation variant is also supposed to be at 1.4v, and it is supposed to launch at between a 1.2 and 1.4 GHz peak speed grade. My guess is that AMD considers the power draw at 1.2 GHz too great for the mobile processor launch. > It appears Intel will launch higher mobile frequencies in less than 2 months. So, AMD would have to be able to achieve 1.3GHz on .18um or be ready to release .13um mobile parts by the 4th quarter. If they can achieve 1.3GHz on .18um, it implies that these 1GHz parts are not minimum channel length parts and they are not yet at the maximum power design limit.< That would be my guess. AMD will probably be able to ship mobile Athlon 4 at up to 1.4 GHz, but peak power draw might rise to about 33 watts, 30 watts at 1.267 GHz. Still a 1.4 GHz mobile Athlon 4 would draw less typical power than the mobile Spitfire. By contrast, Intel's Tualatin will probably be able to hit 1.267 GHz by Q4 easily, and draw significantly less peak power than the current 24 watt of the 1.0 GHz Coppermine, and do even better in typical use. > So.... which is it?? Can they or can't they match Tualatin frequencies??< They can match the frequencies, but only by significantly shortening battery life. Perhaps mobile Palomino actually does have PowerNow!2, and it just is not fully functional now. Perhaps PowerNow!2 will enable AMD to do something similar to what Intel does, boost the clock to 1.4 GHz only when plugged into house current or when the BIOS defaults are overridden. And perhaps PowerNow!2 will be functional by Q4. Thus in Q4, you might be able to purchase a 1.4 GHz Athlon 4 notebook that normally operates at 1.0 GHz when using the battery, but operates at 1.4 GHz when operating on wall current or when the default 1.0 GHz battery operation limit is overridden.