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Prescott will be based on the same basic NetBurst architecture of the Pentium 4, but will come with a number of improvements, Burns said. The chip will come with 1MB of cache, twice as much as current Pentium 4s, and 13 new instructions--computing pathways for handling specific tasks such as multimedia processing.
The chip, which is being shown off at the conference in a concept PC with two screens code-named Marble Falls, will also come with an enhanced version of hyperthreading--a technology introduced late last year to the Pentium 4--and an 800MHz bus, the data path between the processor and the outside world. Current Pentium 4 chips come with a 533MHz bus, which will soon be accelerated to 800MHz.