I've just upgraded from 2GB to 4GB today. So far i've noticed a very nice performance boost all around, or perhaps more accurately a 'responsiveness' boost. Crysis Warhead (only game i have installed so far) shows a massive improvement. I can run it with textures and shaders on enthusiast and everything else on gamer with almost no stutter now - aside from save points and certain marked transitions. One other thing i noticed was how quickly the game exits now, with 2gb ram it would literally take about a minute for my system to become responsive again, and the hard disk would be thrashing away. Now the game closes almost instantly an i can open another program right away.
Overall the move is well worth it, even if ram prices are not good at the moment. At least i can say that this 4gb cost me 1/2 of what 2gb did when i built this sytem! If prices fall in the coming months i will most likely grab another 4gb kit.
Regarding Windows ram usage, i am on W7 Home Premium 64bit, and with Security Essentials and this webpage open (IE) i am using 818mb.
Overall the move is well worth it, even if ram prices are not good at the moment. At least i can say that this 4gb cost me 1/2 of what 2gb did when i built this sytem! If prices fall in the coming months i will most likely grab another 4gb kit.
Regarding Windows ram usage, i am on W7 Home Premium 64bit, and with Security Essentials and this webpage open (IE) i am using 818mb.