Fujitsu Pentium D 840 vs Fujitsu Pentium IV 531

Key differences

The Fujitsu Pentium D 840 has 0.2 GHz more processor base frequency than the Fujitsu Pentium IV 531 (3.2 GHz vs 3 GHz). The Fujitsu Pentium D 840 has 1 MB more processor cache than the Fujitsu Pentium IV 531 (2 MB vs 1 MB). The Fujitsu Pentium D 840 has 0.2 GHz more l2 cache speed than the Fujitsu Pentium IV 531 (3.2 GHz vs 3 GHz). Processor family: Intel® Pentium® D on the Fujitsu Pentium D 840, Intel® Pentium® 4 on the Fujitsu Pentium IV 531. VID Voltage Range: 1.25 - 1.4 V on the Fujitsu Pentium D 840, 1.25 - 1.400 V on the Fujitsu Pentium IV 531.

• Processor family
  • Pentium D 840:Intel® Pentium® D
  • Pentium IV 531:Intel® Pentium® 4
• Processor base frequency
  • Pentium D 840:3.2 GHz
  • Pentium IV 531:3 GHz
• Processor cache
  • Pentium D 840:2 MB
  • Pentium IV 531:1 MB
• L2 cache speed
  • Pentium D 840:3.2 GHz
  • Pentium IV 531:3 GHz
• Thermal Design Power (TDP)
  • Pentium D 840:130 W
  • Pentium IV 531:57 W
• VID Voltage Range
  • Pentium D 840:1.25 - 1.4 V
  • Pentium IV 531:1.25 - 1.400 V
• Stepping
  • Pentium D 840:B0
  • Pentium IV 531:G1
• CPU multiplier (bus/core ratio)
  • Pentium D 840:16
  • Pentium IV 531:15