Recently I have tried Sun xVM VirtualBox 1.6.4 , I have compare vbox with Vmware server 1.0.4. After couple days of testing, its time for me to share some personal findings towards them. I may not able to provide graphs, and accurate figures to shows their performance and specification, but what I do is to only share my point of view as a layman, and how I like or dislike them based on the user experience.
Before looking into performance and features, let us first look at the screenshot! I am loading up myrinix live cd at both virtual tool. The reason I choose myrinix because this great Live CD pre install with vbox guest additions as well as vmware tools, so that I can enjoy the mouse integration to move my mouse IN and OUT the guest os.
Performance and Resources Usage
Seems both Vmware Server and Virtual Box loading speed are equally fast, and it speed close to native while I rambling in guest OS. I have such feeling of Vbox start up is a little bit faster than vmware, but uses more CPU resources than vmware.
More Here