VM detachable performance

[Technologov]

Host: Win 7 x64, VBox 5.0.0-BETA, Intel Core i7 4600U, Intel HD 4400 GFX
Guest: WinXP, 5.0.0-BETA1

normal VM:

PassMark(TM) PerformanceTest 6.1 (http://www.passmark.com)
Results generated on: Sunday, April 05, 2015


Benchmark Results

Test Name: This Computer
Graphics 2D - Lines: 56.3
Graphics 2D - Rectangles: 66.2
Graphics 2D - Shapes: 26.0
Graphics 2D - Fonts and Text: 247.8
Graphics 2D - GUI: 295.9
2D Graphics Mark: 412.1
PassMark Rating: 57.7

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detachable VM:

PassMark(TM) PerformanceTest 6.1 (http://www.passmark.com)
Results generated on: Sunday, April 05, 2015


Benchmark Results

Test Name: This Computer
Graphics 2D - Lines: 19.0
Graphics 2D - Rectangles: 21.8
Graphics 2D - Shapes: 16.5
Graphics 2D - Fonts and Text: 174.1
Graphics 2D - GUI: 235.3
2D Graphics Mark: 248.1
PassMark Rating: 34.7
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Now the question is: maybe my approach from 2011 to solving this problem is better ? (just hide it from taskbar using X11 / or MS Windows system)
It doesn't hurt performance.

see this