Prescott Reworked: The P4 600 Series and Extreme Edition 3.73 GHz

Pricing: Simply Expensive

The chart below shows pricing for various Intel CPUs (OEM prices for 1,000 quantities).

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CPUClock SpeedFSBL2 CachePrice (US Dollars)
P4 Processor 5703.8 GHz200 MHz1 MB637
P4 Processor 5603.6 GHz200 MHz1 MB417
P4 Processor 5503.4 GHz200 MHz1 MB278
P4 Processor 5403.2 GHz200 MHz1 MB218
P4 Processor 5303.0 GHz200 MHz1 MB178
P4 Processor 6603.6 GHz200 MHz2 MB605
P4 Processor 6503.4 GHz200 MHz2 MB401
P4 Processor 6403.2 GHz200 MHz2 MB273
P4 Processor 6303.0 GHz200 MHz2 MB224
P4 Processor Extreme Edition3.43 GHz266 MHz512 kB + 2 MB L3-Cache999
P4 Processor Extreme Edition3.73 GHz266 MHz2 MB999

You'll see that the 600 family is considerably more expensive than the 500 models when comparing prices at equal clock speeds. Another thing becomes obvious when comparing a 500 series CPU and a 600 model running 200 MHz slower: here, the 600 series is slightly cheaper.

This strategy will certainly help Intel to introduce the 600 series. Since 2 MB L2 cache is a unique selling point, many users might be willing to live with 200 MHz less clock speed to get it.

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ProcessorPrice delta of 500 vs. 600 series
3.0 GHz26%
3.2 GHz25%
3.4 GHz44%
3.6 GHz45%

The extra cost for 2 MB L2 cache and a comprehensive feature update is something we don't really understand. Running at the same clock speed, a 600 series processor is not noticeably faster than a 500 series one, leaving only the feature set a strong selling point.