Does anyone notice that early 2008 Mac Pro( 2 x 2.8GhzCPU intel Xeon E5462 4core/each) performance depands on Windows operation system version
These days I test each windows OS results below
I only use PassMark "PerformanceTest 7.0 " for testing
comparing the CPU mark:
1.Running of windows XP Pro 32bit and 64bit with SP2 gets score: 6732
2.Running of windows vista Home Premiun 32bit and 64bit gets score: 4823
3.Running of windows vista Business 32bit Don't have 64bit get score: 905 ?? after configration new score 6821
4.Running of windows vista Ultimate 32bit and 64bit gets score : 9328
According to these results I finally really that the Most best Performance is 64bit and everything is making sense only I have no idea Why did Vista Business get damn such low score ?
Note: above only window vista Home Premium support Single CPU this is the reasone why it got low score.
I hope everyone Can Post your results , anyone can tell me why Vista business gets such unbelivable score. Thanks

These days I test each windows OS results below
I only use PassMark "PerformanceTest 7.0 " for testing
comparing the CPU mark:
1.Running of windows XP Pro 32bit and 64bit with SP2 gets score: 6732
2.Running of windows vista Home Premiun 32bit and 64bit gets score: 4823
3.Running of windows vista Business 32bit Don't have 64bit get score: 905 ?? after configration new score 6821
4.Running of windows vista Ultimate 32bit and 64bit gets score : 9328
According to these results I finally really that the Most best Performance is 64bit and everything is making sense only I have no idea Why did Vista Business get damn such low score ?
Note: above only window vista Home Premium support Single CPU this is the reasone why it got low score.
I hope everyone Can Post your results , anyone can tell me why Vista business gets such unbelivable score. Thanks