Adrian Kingsley has posted a performance test of “VIPRE, Kaspersky AntiVirus 2007, Norton AntiVirus 2008”, the testing was done with PassMark PerformanceTest 6.1 (32-bit and 64-bit for the respective operating systems). For each test PassMark PerformanceTest 6.1 was run three times and the scores averaged to achieve the final score.

The results here are quite staggering. While the effect that VIPRE had on system performance was indeed minimal (in the region of 1.5% to 2.0% for the 32-bit system, and around 0.5% for the 64-bit system), Kaspersky AntiVirus 2007 had a much larger effect (in the region of 15% for the 32-bit system, and around 8% for the 64-bit system), while Norton AntiVirus 2008 hit the system even harder (about 19% for the 32-bit system, and 12% for the 64-bit system).

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