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Do Virus Scanners Slow Down Your System?

File Access Benchmarks

The following benchmarks involve hard drive and file access, which a virus scanner could theoretically affect.

The results are close across the board with our first file access benchmark, the PCMark hard drive test score. It has been our experience that PCMark results have a larger margin of error than what we’d prefer, so we won’t draw any specific conclusions from this close result.

Moving to a real-world benchmark that involves compressing 334 MB of files, our WinRAR test doesn’t expose any obvious weaknesses in file system performance.

  • theshonen8899
    Great article, thanks!
    Reply
  • iam2thecrowe
    before i read the article, my guess is Norton is the slowest and most useless....
    Reply
  • tony singh
    How can u forget Avira , it's so popular & so good .
    Reply
  • alyoshka
    I guess the new ones are lighter than the earlier ones for some of them....
    Reply
  • well from my point of view - antivirus scanner do application loading to take a much longer time and this was proven by your tests.

    I think that AV software has no place into todays operating systems except for inexperincied users. I'm investing money to fast SSD disc to improve performace, why the hell intstall AV software to push performance back?
    Reply
  • ruffopurititiwang
    This is the kind of article that keeps me coming back to Tom's! Kudos!
    Reply
  • aznshinobi
    Avast please?
    Reply
  • micr0be
    talk about heavy modifications on the new set of AVs compared to the older ones ... my surprise is norton which i was expecting to cripple the system to a halt .... very nice article btw
    Reply
  • The test rig's CPU looks funny to me.

    Athlon II X4 645
    3.5 GHz, Quad-Core, 6 MB L3 Cache

    Isn't that a Phenom?
    Reply
  • tony singh
    @Fip - Because when dirty viruses do their job, you'll get a headache.
    Reply