Last week we delivered the first of our Windows 7 vs. Ubuntu 10.04 benchmarks to much anticipation, but now we have the results for Apple's Mac OS X 10.6.3 operating system to tack in too. In the first part of that Windows 7 vs. Ubuntu Linux performance examination, we looked closely at the OpenGL gaming performance across six different systems and a whole slew of tests. More articles are on the way looking at the performance and later in the week we already delivered some initial disk benchmarks. However, now it is time to see how Microsoft Windows 7 Professional x64, Ubuntu 10.04 LTS, and Apple Mac OS X 10.6.3 compete with one another.