Futuremark 3DMark06 1.1.0	Source: FutureMark

3DMark06 is the worldwide standard in advanced 3D game performance benchmarking. A fundamental tool for every company in the PC industry as well as PC users and gamers, 3DMark06 uses advanced real-time 3D game workloads to measure PC performance using a suite of DirectX 9 3D graphics tests, CPU tests, and 3D feature tests. 3DMark06 tests include all new HDR/SM3.0 graphics tests, SM2.0 graphics tests, AI and physics driven single and multiple cores or processor CPU tests and a collection of comprehensive feature tests to reliably measure next generation gaming performance today.

Higher results are better.

Futuremark 3DMark06 1.1.0 - Windows Vista Overall: Points Ranking Intel Core i7 920 15134 Intel Core i5 750 14877 Intel Core 2 Duo E8500 13789 Intel Core 2 Duo E8400 10196 AMD Phenom II X4 965 Black Edition 15360 AMD Phenom II X4 955 Black Edition 15060 AMD Phenom II X3 720 Black Edition (DDR2) 9618 AMD Phenom II X3 720 Black Edition (DDR3) 9609 AMD Phenom II X2 550 Black Edition 12830 AMD Athlon II X4 620 12526 AMD Athlon II X2 250 12391 CPU: Points Ranking Intel Core i7 920 4658 Intel Core i5 750 4155 Intel Core 2 Duo E8500 2928 Intel Core 2 Duo E8400 2805 AMD Phenom II X4 965 Black Edition 4560 AMD Phenom II X4 955 Black Edition 4446 AMD Phenom II X3 720 Black Edition (DDR2) 3281 AMD Phenom II X3 720 Black Edition (DDR3) 3271 AMD Phenom II X2 550 Black Edition 2490 AMD Athlon II X4 620 3675 AMD Athlon II X2 250 2424

3DMark06 is more single-thread oriented than 3DMark08 Vantage, so some of the multi-core effiecency that the Core i5 750 ennjoyed originally is lost when compared to the Phenom II X4 965 Black Edition, which has a higher clock speed.

Futuremark 3DMark06 1.1.0 - Windows 7 Overall: Points Ranking Intel Core i7 920 15124 Intel Core i5 750 14826 Intel Core 2 Duo E8400 13274 AMD Phenom II X4 965 Black Edition 15420 CPU: Points Ranking Intel Core i7 920 4656 Intel Core i5 750 4140 Intel Core 2 Duo E8400 2794 AMD Phenom II X4 965 Black Edition 4761

No real change in Windows 7. If you own a processor made in the past two or three years, you'll likely get as good performance out of Windows 7 as you did out of Windows Vista.