RAM eater nanaman to. haha
If RAM is an issue to you, then go back to those primitive 386's and use WordStar...
These are the good times, and people should fully embrace the 64-bit architecture and explore its capabilities.
Anyway, according to
one of those Windows benchmark tests that scattered around the net -- compared to Vista, Windows 7 seems to be the better OS under these categories (also take note on how close Win 7 performs against XP):
Memory Latency
Processor Multi-Media
Multi-Core Efficiency (by a little)
And to think Windows 7 is still on its infancy, we still have to wait and see its full potential.