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Home » CPU
All Pentium D and Pentium Extreme Edition Models
Author: Cássio Lima 85,933 views
Type: Tutorials Last Updated: September 14, 2007
Page: 2 of 3
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 Die
click to enlarge
Figure 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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