Fujitsu Pentium 4 650 vs Fujitsu Pentium D 840

Key differences

The Fujitsu Pentium 4 650 has 0.2 GHz more processor base frequency than the Fujitsu Pentium D 840 (3.4 GHz vs 3.2 GHz). The Fujitsu Pentium 4 650 has 0.2 GHz more l2 cache speed than the Fujitsu Pentium D 840 (3.4 GHz vs 3.2 GHz). The Fujitsu Pentium D 840 has 46 W more thermal Design Power (TDP) than the Fujitsu Pentium 4 650 (130 W vs 84 W). Processor family: Intel® Pentium® 4 on the Fujitsu Pentium 4 650, Intel® Pentium® D on the Fujitsu Pentium D 840. VID Voltage Range: 1.287 - 1.400 V on the Fujitsu Pentium 4 650, 1.25 - 1.4 V on the Fujitsu Pentium D 840.

• Processor family
  • Pentium 4 650:Intel® Pentium® 4
  • Pentium D 840:Intel® Pentium® D
• Processor base frequency
  • Pentium 4 650:3.4 GHz
  • Pentium D 840:3.2 GHz
• L2 cache speed
  • Pentium 4 650:3.4 GHz
  • Pentium D 840:3.2 GHz
• Thermal Design Power (TDP)
  • Pentium 4 650:84 W
  • Pentium D 840:130 W
• VID Voltage Range
  • Pentium 4 650:1.287 - 1.400 V
  • Pentium D 840:1.25 - 1.4 V
• Stepping
  • Pentium 4 650:R0
  • Pentium D 840:B0
• CPU multiplier (bus/core ratio)
  • Pentium 4 650:17
  • Pentium D 840:16
• Processor code
  • Pentium 4 650:SL4JW
  • Pentium D 840:SL8CM