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Technology Stocks : Intel Corporation (INTC) -- Ignore unavailable to you. Want to Upgrade?

To: fingolfen who wrote (137950)	6/22/2001 1:35:14 PM
From: Dan3	Respond to of 186894

Re: Do you think you double the cache size for no power penalty??? It's less than you'd think, go look at some spec sheets.

To: fingolfen who wrote (137950)	6/22/2001 10:17:24 PM
From: Dan3	Read Replies (1) \| Respond to of 186894

Re: Do you think you double the cache size for no power penalty??? Check out page 57 of the Xeon pdf at support.intel.com The 900MHZ is available only as a 2meg cache part (the 700 comes as either 1meg cache or 2meg cache. I'll help you out if you want to save some time - core power is listed at 31.8w for the 900 with 2 meg cache. It's probably the typical Intel fudge, since they have to use a more robust process to get decent yields and the voltage is 2.8. They also suggest designing for 50w in order to gain a "flexible motherboard design". Power is probably more like 50w under a worst case. Getting decent yields with a big cache may require a process that runs at a higher voltage, and that process may use more power, but the cache isn't what uses the power. Cache uses some power, but (relatively) so little that it doesn't matter. Certainly it's power consumption won't matter much when comparing a chip with a 256 meg cache to a 512 meg cache. You might want keep in mind that chips like Motorola G4, and Transmeta's crusoe have decent sized caches and the whole CPU uses only a few watts. So far, Intel's .13 process doesn't look very good. Deal with it. Dan