Fujitsu Pentium 4 640 vs HP Intel Celeron 540

Key differences

The Fujitsu Pentium 4 640 has 1.34 GHz more processor base frequency than the HP Intel Celeron 540 (3.2 GHz vs 1.86 GHz). The Fujitsu Pentium 4 640 has 25 nm more processor lithography than the HP Intel Celeron 540 (90 nm vs 65 nm). The Fujitsu Pentium 4 640 has 1 MB more processor cache than the HP Intel Celeron 540 (2 MB vs 1 MB). Processor family: Intel® Pentium® 4 on the Fujitsu Pentium 4 640, Intel® Celeron® on the HP Intel Celeron 540. Processor socket: LGA 775 (Socket T) on the Fujitsu Pentium 4 640, Socket 478 on the HP Intel Celeron 540.

• Processor family
  • Pentium 4 640:Intel® Pentium® 4
  • Intel Celeron 540:Intel® Celeron®
• Processor base frequency
  • Pentium 4 640:3.2 GHz
  • Intel Celeron 540:1.86 GHz
• Processor socket
  • Pentium 4 640:LGA 775 (Socket T)
  • Intel Celeron 540:Socket 478
• Processor lithography
  • Pentium 4 640:90 nm
  • Intel Celeron 540:65 nm
• Package type
  • Pentium 4 640:Box
  • Intel Celeron 540:Tray
• Processor cache
  • Pentium 4 640:2 MB
  • Intel Celeron 540:1 MB
• Processor front side bus
  • Pentium 4 640:800 MHz
  • Intel Celeron 540:533 MHz
• Thermal Design Power (TDP)
  • Pentium 4 640:84 W
  • Intel Celeron 540:30 W