2004-02-02 Intel Pentium 4E Also known as Prescott launches at 2.8 ($178), 3.0 ($218), 3.2 ($278) and 3.4 ($417) GHz with a 800 MHz front side bus and is built using a seven layer, Low-K, 90 nm Strained Silicon process.
Builds on the Netburst architecture, but adds "PNI" or Prescott New Instructions, which includes 11 new instructions, and LaGrande, a new security interface to go with Microsoft's Palladium. Also includes an improved pre-fetch branch predictor, improved HyperThreading, doubled L1 data cache size, doubled RAT History table size and advanced power manangement.
Will use Canterwood to start with, but in Q2 it will add the 64-bit CT Technology, move to Grantsdale and use the LGA775 socket.
Celeron Prescotts will be launched in Q2. Prescott reach 4 GHz in 2004-Q4 (now moved to 2005-Q1).
Now renamed Pentium 4E.2004-05-10 Intel Dothan 90 nm successor to Banias, and the Centrino / Pentium M line, which will have a 400 MHz bus (533 in 05-Q1) and 2MB of cache. Will be called 735, 745 and 755 for 1.7 to 2.0 GHz processors costing $294, $423 and $637.
Slower (715 and 725) versions launch in Q3, and faster (760, 770: 533 MHz bus, up to 2.13 GHz) in Q4. Consumes 21W in performance mode. Earlier meant to launch in 03-Q3.2005-Q2 Intel Tejas Successor to Prescott likely to be called Pentium V built on a 90 nm process, supporting IA-32e, DDR-II and PCI Express. Runs cooler and quiter than current chips. Uses a new LGA775 socket, with a 1066 MHz bus and starts at around 4.5 GHz, moving to around 9 before it is canceled. To include the 8 new "Tejas New Instructions" aka Azalia (Azalea), for improved audio multistreaming, speech recognition, Dolby Digital etc. Also includes "Extended Enhanced HyperThreading"...
Uses dual channel DDR-II DRAM at 533 MHz and the Alderwood and Grantsdale chipsets.
Will later be built in a 65 nm process, with a size of 80-100 mm2. The 65 nm version will get 2 MB of L2 cache on chip.
Earlier listed for a 04-Q4 launch, but recent news claim Prescott delays have moved the launch into 2005.
Tejas is canned in favor of Merom / Conroe.