(using an ordinary pc with the specs of consisting of an Intel dual-core E5200 CPU, 2GB of RAM and an ATI Radeon HD4550 graphics card. We installed XP, Vista and Windows 7 in that order (all 32-bit versions) on the machine's 500GB hard drive) #Boot time: 1. Win7 2. WinXP 3. WinVista
#File transfer (small file capacity): 1. Win7 2. WinXP 3. WinVista
#File transfer (1gb file capacity): 1. Win7 2. WinVista 3. WinXP
#Opening PDF/Excel files: Open a small Excel spreadsheet or PDF file, say, and XP beats Vista, but heavy-duty spreadsheets and PDF files opened faster under Vista than XP. Once again, however, both were trounced by Win7.
#Based on the site, Win7 won the performance panel of the comparing of OSes.
COMPARING OF WinXP, Win7 and WinVista ON NETWORKING:
“Homegroups promise simpler networking, but there's a snag - they're for Windows 7 machines only.”
Windows 7 takes Vista's networking features and adds homegroups – a simple way to create a network and securely share your pictures, music, videos, documents and printers. Sounds good, right? We're not entirely convinced. Homegroups will only work with Windows 7 systems, so if you've got an old XP or Vista PC then you'll have to create and manage your network the old-fashioned way. Once you've figured out how to do that, it's hard to see why you'd ever move to homegroups in future. It's even possible that users will largely ignore them and continue to create and manage networks just as they always have.
Still, Windows 7 does appear to have improved on Vista's networking performance. It jostled for top spot with XP in our tests, each winning one file transfer speed test apiece. That said, Windows 7 was significantly quicker at transferring large files. Along with its generally useful-feature set, that's enough for us to award it first place.
But be aware that network speeds