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The Unabridged Pentium 4 IA32 Processor Genealogy by Bob Colwell, Tom Shanley

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The Roadmap

Table 33-1 on page 814 provides a brief description of the Pentium® 4 roadmap from its introduction and projecting into 2005. The reader should keep in mind that Intel®'s future roadmap is always subject to change, so don't consider the future roadmap as carved in bronze.

Table 33-1. The Pentium® 4 Roadmap
Code NameDateDescription
The Pentium® 4 Processor
Willamette11/20/00Released at 1.4/1.5GHz with the following major features (in no particular order and not a complete list):
  • SSE2 instructions added ability to perform matrix math on packed DP FP numbers, and ability to perform MMX operations on data packed into 128-bit XMM registers.

  • Completely re-designed core with 20 pipeline stages (see Figure 35-3 on page 846), versus 10 in the ...

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