PC World have released Worldbench 6 benchmark results comparing the
The largest difference was 4 points–102 for
Vista versus 106 for Windows 7 on an HP Pavillion a6710t desktop. Our other two test machines showed similarly minor performance improvements: A Maingear M4A79T Deluxe desktop improved by 1 point (from 138 on Vista to 139 on Windows 7), and a Dell Studio XPS 16 laptop improved by 2 points, from 97 on Vista to 99 on Windows 7.
It should also be noted that tests with the final version of Windows 7 might look different although likely not by a large margin। Benchmarks are on the other hand not comparable to first hand user experience which is why it is suggested to test Windows 7 first hand.
updated from Martin Brinkmann (windows7news)