Parallels faster than VMware in virtualization head-to-headIn a comprehensive set of benchmark tests, virtualization competitors Parallels Desktop 5.0 and VMware Fusion 3.0 were examined head-to-head, finding Parallels to be an average of 30% faster than VMware.
MacTech Magazine, in an exhaustive series of tests spanning eight pages, came to several main conclusions after putting VMware Fusion 3 and Parallels Desktop 5 though its gauntlet of benchmarks. While both virtualization programs are excellent products, Parallels Desktop was the clear winner - running an average of nearly 30% faster than its competitor over the course of the test suite. Parallels largest gains can be seen in graphics, gaming, and 3D performance.
"If gaming, graphics, and 3D are your thing, you have no choice. Parallels Desktop has so much better graphics support, and is so much faster in most of the comparisons, there's simply no contest," writes MacTech.
Speed should not be the only determinant in deciding on virtualization software, however.
"In the end, your decision as to which product you should take into account what's most important to you: speed, footprint, graphics capabilities, features, user interface, OS you want to run, and more all come into play."
Improvements in Windows 7 as well as in virtualization technology can account for a diminishing "Vista penalty" in performance versus WIndows XP. While Windows 7 performs better than its Vista predecessor, MacTech still recommends sticking with Windows XP due to the fact that it still outperforms Microsoft's latest OS in virtualization tests.
Regarding the allocation of RAM in a virtual machine, more is not always better. MacTech found that more RAM actually leads to longer launch times, suspends, and resumes. It recommends 512MB to 1GB of VM RAM under normal circumstances.
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