4 Things to Know About RAM Capacity vs. Dual-Channel

16GB in single-channel outperforms 8GB in dual-channel for most real-world use. Running out of RAM forces the system to use slow disk storage, which hurts performance more than memory bandwidth ever helps.

Dual-channel doubles memory bandwidth, which benefits heavy multitasking like video editing or running virtual machines. But this advantage disappears once you exceed your total RAM capacity.

For heavy multitasking with 20+ browser tabs, Slack, Spotify, a code editor, and Docker containers, prioritize having enough RAM first. Add dual-channel second to make that RAM faster.

When building a new machine, get 16GB in a dual-channel kit. When upgrading an old one, adding a second stick for dual-channel is cheap and worthwhile.