![]() Testing by Rob Griffiths, using a 2.66GHz Quad Core Mac Pro with 8GB of RAM. Sun also made changes to support the improved VT-x features in Intel’s latest CPUs-the Nehalem line-so users with new Mac Pros should see an added performance boost). Sun points out, however, that hardware virtualization doesn’t automatically mean you’ll get a faster virtual machine, as there’s overhead associated with using hardware virtualization. To the end user, support for hardware virtualization brings two main benefits: you can now install and run 64-bit versions of various operating systems, and you should see better stability as less virtualization code needs to be run. The big news in this release is support for Intel’s VT-x hardware virtualization on the Mac. ![]() Since the release of 2.1, there have been four minor releases, bringing VirtualBox up to version 2.1.4, which is the one I used for this updated review. Just after I reviewed Sun’s VirtualBox virtualization solution, the company released version 2.1 which added two major new features along with the usual assortment of bug fixes.
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