Advanced Micro Devices - Moderated (AMD) Message Board

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Technology Stocks : Advanced Micro Devices - Moderated (AMD)

AMD 217.91

+0.9%

Dec 5 9:30 AM EST

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To: Dan3 who wrote (20197)	11/22/2000 11:58:32 AM
From: Petz	Read Replies (3) of 275872

Yowsers, Dan! At the nominal voltage of 1.63 volts (midway between min and max voltage), the Icc is 40.6 amps at 1.4 GHz and 43 amps at 1.5 GHz. Thats a power consumption of 66 watts and 70 watts, respectively. Intel calls that "about 50 watts" in their hype. LOL The max thermal power is listed as 51.8 and 54.7 watts. I have no clue as to where the extra 15 watts are dissipated. Perhaps the Icc numbers are very much instantaneous peaks. Athlon shows more DC power required as input than max thermal power dissipated, but not to this extreme extent. The 70 degC and 72 degC case temperature limits aren't quite as bad as the P3 in the sense that they are case temperature limits instead of junction temperature limits. The Tj can probably be 5 degrees higher. However, your conclusion is valid. The P4 1.5 GHz on 0.18u has extremely little headroom, even for a 1.6 GHz part, unless Intel implements Herculean cooling technology. Petz

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