Fujitsu Core 2 Duo E6400 vs Fujitsu Pentium D 840

Key differences

The Fujitsu Pentium D 840 has 1.07 GHz more processor base frequency than the Fujitsu Core 2 Duo E6400 (3.2 GHz vs 2.13 GHz). The Fujitsu Pentium D 840 has 25 nm more processor lithography than the Fujitsu Core 2 Duo E6400 (90 nm vs 65 nm). The Fujitsu Pentium D 840 has 1.07 GHz more l2 cache speed than the Fujitsu Core 2 Duo E6400 (3.2 GHz vs 2.13 GHz). Processor family: Intel® Core™2 Duo on the Fujitsu Core 2 Duo E6400, Intel® Pentium® D on the Fujitsu Pentium D 840. VID Voltage Range: 0.85 - 1.5 V on the Fujitsu Core 2 Duo E6400, 1.25 - 1.4 V on the Fujitsu Pentium D 840.

• Processor family
  • Core 2 Duo E6400:Intel® Core™2 Duo
  • Pentium D 840:Intel® Pentium® D
• Processor base frequency
  • Core 2 Duo E6400:2.13 GHz
  • Pentium D 840:3.2 GHz
• Processor lithography
  • Core 2 Duo E6400:65 nm
  • Pentium D 840:90 nm
• L2 cache speed
  • Core 2 Duo E6400:2.13 GHz
  • Pentium D 840:3.2 GHz
• Processor front side bus
  • Core 2 Duo E6400:1066 MHz
  • Pentium D 840:800 MHz
• Thermal Design Power (TDP)
  • Core 2 Duo E6400:65 W
  • Pentium D 840:130 W
• VID Voltage Range
  • Core 2 Duo E6400:0.85 - 1.5 V
  • Pentium D 840:1.25 - 1.4 V
• Stepping
  • Core 2 Duo E6400:B2
  • Pentium D 840:B0