Phenom II X4 840 CPU Review

How We Tested

During our benchmarking sessions we used the configuration listed below. Between our benchmarking sessions the only variable device was the CPU being tested and the motherboard, which had to be replaced to match the different CPU sockets.

Hardware Configuration

  • Motherboard (Socket AM3): ASRock 880GXH/USB3 (1.20 BIOS)
  • Motherboard (Socket LGA775): Intel DG45ID (0131 BIOS)
  • CPU Cooler: Intel/AMD stock
  • Memory (Socket AM3): 4 GB DDR3-1333, two G.Skill F3-10666CL7T memory modules
  • Memory (Socket LGA775): 4 GB DDR2-800, four Crucial CT12864AA800.M8FE memory modules
  • Hard Disk Drive: Western Digital Caviar Black 1 TB (WD1001FALS, SATA-300, 7,200 rpm, 32 MB buffer)
  • Video Card: GeForce GT 430 (used on some tests only)
  • Video Monitor: Samsung Syncmaster 932BW
  • Power Supply: OCZ StealthXStream 400 W

Operating System Configuration

  • Windows 7 Ultimate 64-bit
  • NTFS
  • Video resolution: 1440×90 60 Hz

Driver Versions

  • NVIDIA video driver version: 266.58
  • Intel video driver version:
  • AMD video driver version: 8.71
  • Intel Inf chipset driver version:
  • AMD chipset driver version: 8.631

Software Used

Error Margin

We adopted a 3% error margin. Thus, differences below 3% cannot be considered relevant. In other words, products with a performance difference below 3% should be considered as having similar performance.

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Author: Gabriel Torres

Gabriel Torres is a Brazilian best-selling ICT expert, with 24 books published. He started his online career in 1996, when he launched Clube do Hardware, which is one of the oldest and largest websites about technology in Brazil. He created Hardware Secrets in 1999 to expand his knowledge outside his home country.

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