Advanced Micro Devices - Moderated (AMD) Message Board

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Technology Stocks : Advanced Micro Devices - Moderated (AMD)

AMD 206.55

+1.4%

9:30 AM EST

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To: eplace who wrote (35704)	4/16/2001 9:31:37 AM
From: that_crazy_doug	Read Replies (1) of 275872

<< In order to prevent the CPU from exceeding 54.7 watt, thermal throttling is used. If performance critical applications drive CPU power above its artificially low 54.7 watt limit, the CPU is halted with a 50% duty cycle (alternating 2 microseconds on; 2 microseconds off) until it cools down. This effectively turns your 1.5GHz processor into a 750MHz processor >> Would this mean the p4 isn't nearly as bad as everyone thinks? I wonder if Benchmark processors Intel distributes have this feature turned off? If not it would explain why it gets smeared in a lot of benchmarks. Which makes you wonder is the p4 really worse then an athlon clock per clock or is it that it gets knocked down to a 750 mhz chip whenever it gets hot. This also explains why it scales very poorly when overclocked, because it probably has to spend more time cooling down.

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