AMD Phenom II X2 550 BE & Athlon II X2 250

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TEST METHODOLOGY

Common Test Platform:

Intel:

AMDs:

Measurement and Analysis Tools

  • CPU-Z to monitor CPU frequency and voltage.
  • CPUBurn K7 processor stress software.
  • Prime95 processor stress software.
  • Cyberlink PowerDVD to play H.264/VC-1/Blu-ray video.
  • Eset NOD32 as an anti-virus benchmark.
  • WinRAR as an archiving benchmark.
  • iTunes an audio encoding benchmark.
  • TMPGEnc Xpress as a video encoding benchmark.
  • PCMark05 as a general system benchmark.
  • Seasonic Power Angel AC power meter, used to measure the power consumption of the system.
  • Custom-built, four-channel variable DC power supply, used to regulate the CPU fan speed.

Benchmark Test Details

  • Eset NOD32: In-depth virus scan of a folder containing 32 files of varying size with many of them being file RAR and ZIP archives.
  • WinRAR: Archive creation with a folder containing 68 files of varying size (less than 50MB).
  • iTunes: Conversion of an MP3 file to AAC.
  • TMPGEnc Xpress: Encoding a 1-minute long XVID AVI file to VC-1 (1280x720, 30fps, 20mbps).

Our testing procedure is designed to determine the overall system power consumption at various states (measured using a Seasonic Power Angel). To stress CPUs we used Prime95 (large FFTs setting) or CPUBurn (which produced the higher power draw). We also performed a short series of benchmarks featuring real-world timed tests and synthetics.

Cool'n'Quiet and/or Intel SpeedStep were enabled (unless otherwise noted). The following features/services were disabled during testing to prevent spikes in CPU/HDD usage that are typical of fresh Vista installations:

  • Windows Sidebar
  • Indexing
  • Superfetch



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