How much RAM do I need?

Do you really need to buy 4GB, or can you get away with less?

Ask the typical PC expert "how much memory do I need?" and they'll probably tell you to "get 4GB, it's very cheap these days and you're short-changing yourself with anything less".

And this isn't an unreasonable answer. The less RAM you have, the more likely Windows will have to start swapping out pages of memory to your hard drive, drastically cutting your system's performance.