To: A. A. LaFountain III who wrote (58611 ) 5/18/1999 2:22:00 PM From: Kevin K. Spurway Read Replies (1) | Respond to of 1580692
Let's say a 500 MHz Xeon with 1024k L2 goes for $2000. Using your highend estimate of 80% margins that is $1600 in profit/unit. It's also $400 in cost/unit. You're saying that the margins on the Celeron could be as high as 55% (so for a $95 Celeron 400, that means about $50 in costs). Let's try to verify this $50 number. We know: 1) Mendocino Celeron has a larger die size than the Xeon core, making it more expensive to manufacture. 2) Celeron has (in some cases) no SECC cartridge/no slot making it cheaper to manufacture. Let's say these materials cost $10/chip. 3) Celeron has no large off-chip L2 cache. Anyone know the current spot market price of 1024k of full speed SRAM? Deduct 40% margin and you get Intel's cost on the Xeon SRAM. Let's use $200 as a cost here ($280 spot market)--this is a WAG but I expect it's way on the high side. Someone give me a good number here? 4) According to Ten, Celeron has no desperate need to climb the speed curve (less validation necessary), no need to validate on the 100 MHz bus. I'm not sure how good an argument this is because Celeron overclocks at least as high as Xeon does, if not higher (because of the lack of L2). In other words, Intel could sell a 550 MHz Celeron today if it wanted to. Since it is the same process that Intel is using on all of these chips, process development costs should be spread evently. That being said, Xeons should be tested to higher reliability standards than Celerons, have to go through multiprocessor validation, 100 MHz bus testing (more sophisticated electricals), etc. so I'll throw in a few bucks of extra cost here--say $20. So to put together a "virtual Menocino" using the Xeon: $400 Xeon cost -$10 slot 2 cartridge -$200 cache -$20 testing, etc. =$170 total cost. Add another 10% for the 128k of L2 on die, and you get $177 of cost for a 400 Mhz Celeron (downbinned). Are Intel's margins for the Xeon higher than 80%? Maybe. Are the expenses I'm stripping out of the Xeon cost reasonably accurate? Maybe not. Is Intel selling below marginal cost? Unlikely. Is Intel selling below average unit cost? Possible. Kevin