How much RAM do I need?

Memory
How much memory do you actually need?

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.