Start64!With people eyeing new Windows 8 and Mountain Lion powered computers, the question of how much RAM a modern system needs is hitting my inbox with increased frequency. Here is my definitive guide to how much RAM you need.

Note that dual-channel motherboards will support 1GB, 2GB, 4GB, 8GB, and 16GB of RAM, depending on motherboard, while triple-channel boards support 3GB, 6GB, 9GB, or 12GB,again, depending on motherboard support.