As I installed beta version of Windows 7 on pre-installed Windows Vista system , I decided to quantify the performance. First I run the Microsoft's own performance measurement tool in Windows Vista via control panel. Before running this tool, I assured that latest drivers are installed and Windows Vista installation is clean i.e no other software or application is installed
The following Hardware configuration is used.
Motherboard : Intel DG33FB
RAM 1 GB, 800 MHz
HDD 160 GB SATA
Graphics : On board graphics controller Intel G33/G31 Express Chipset Family
Windows Vista : 32 Bit OS with SP1
Windows 7 : 64 Bit edition
The score with Windows Vista 32 bit OS was 3.1 , while the score obtained with Windows 7 , 64 bit edition was mere 3.2, a difference of mere 0.1 on the scale of 1.0 to 7.9.See the attached Images.
Performance with Windows Vista(32 bit)
Performance with Windows 7 (64 bit)
The only notable difference was on Processor component. While Windows 7(64 bit) Scored 7.1 points , windows Vista(32 bit) scored 5.9. I think that may be due to largely 64 bit vs 32 bit edition.
Point to note that I have not installed the native drivers of chipset and motherboard in Windows 7 as they are not available yet.
No doubt , windows 7 make you feel and experience as Faster and responsive system, but on the front of Statistics and numbers the story is different.
As Windows 7 is in beta edition , I know my observations may not be complete and lacks many factors.