Performance gain will be negligible... some people say Win 7 "feels" faster... but so far as I know most benchmarks are showing it to be on par with Vista. You'll more performance out of newer hardware than you will out of a newer OS.
Yeah, I think my laptop is a lot faster, but it's basically a very similar OS. feels faster I should probably say. Same drivers for both so I wouldn't imagine performance would be much different. It sure loads a heck of a lot faster. Yeah I'd say responsive too.
I think the big difference will be newer technologies will be optimized for Win7, like SSD's and DirectX11.
SSDs are definitely better on Win 7. I also agree that the boot time is noticeably shorter, but I am more pleased with the fact that I can start Firefox within 5 seconds of the desktop showing instead of 1 minute.
Once DX11 is in full effect, both Vista and W7 will benefit, so there wont be a huge advantage in gaming. Theyve setup a more paralellised usge in W7 in 2D that allows for faster 2D usage, and is why its snappier, as having several apps , when cued, dont have to wait when mulitasking, as more than 1 is actually being able to process at a time
I would like to see a similar test being made on a Netbook with total focus on productivity, witch I think is more interesting than testing Windows on a super rip. I think, if Windows 7 have speed advantages it will be more obvious on a slower computer, and on a rig that Windows 7 claims to have advantages on