All Pentium D and Pentium Extreme Edition Models

Smithfield

Pentium D and Pentium Extreme Edition processors from 800 series are based on Smithfield die, which is simply two Prescott chips assembled together, as you can see in Figure 1. It has 230 million transistors occupying an area of 206 mm2 (0.319 sq inch) and manufactured using 90-nm technology.

Smithfield DieFigure 1: Smithfield die.

The main specifications for Pentium D and Pentium Extreme Edition 800 series are the following:

  • Dual-core technology
  • 16 KB L1 data cache
  • 2 MB L2 memory cache (1 MB per core)
  • 800 MHz external bus (200 MHz transferring four data per clock cycle), 533 MHz external bus on Pentium D 805 (133 MHz transferring four data per clock cycle).
  • SSE3 instruction set support
  • Socket LGA775
  • 90-nm manufacturing process
  • EM64T 64-bit Technology
  • Execute Disable Technology
  • Enhanced SpeedStep Technology (only on 840 and 830 models)
  • Hyper-Threading technology on Pentium Extreme Edition (Pentium D doesn’t have this feature).

In the table below you can find all Pentium D (listed as “Hyper-Threading: No”) and Pentium Extreme Edition (listed as “Hyper-Threading: Yes”) from 800 series released to date.

Model sSpec Internal Clock External Clock TDP Max. Temp (° C) Hyper-Threading
840 SL8FK 3.20 GHz 800 MHz 130 W 69.8 Yes
840 SL88R 3.20 GHz 800 MHz 130 W 69.8 No
840 SL8CM 3.20 GHz 800 MHz 130 W 69.8 No
830 SL8CN 3 GHz 800 MHz 130 W 69.8 No
830 SL88S 3 GHz 800 MHz 130 W 69.8 No
820 SL88T 2.80 GHz 800 MHz 95 W 64.1 No
820 SL8CP 2.80 GHz 800 MHz 95 W 64.1 No
805 SL8ZH 2.66 GHz 533 MHz 95 W 64.1 No

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Author: Cassio Lima

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