Microsoft's Windows 7 operating system is receiving raves in its pre-release testing. Infoworld ran a benchmarks on a Dell Precision T3500 workstation, with quad-core Xeon W3540 (Nehalem) 2.93GHz processor, Nvidia FX Quadro 4800 GPU, 4GB RAM, with three identical hard drives, each preloaded by Dell with latest versions of 32-bit “Windows XP Professional, Vista Ultimate, and Windows 7 Ultimate”, and latest drivers. “We then ran the benchmarks on each OS, swapping in a new disk when we were done with the previous operating system. This approach allowed us to see what benefits each version of Windows provided when run on identical hardware. Performance was checked using Viewperf benchmark from SPEC, Cinebench from Maxon Computer. ” Yahoo news.