3 Facts About RAM Power and Heat

RAM uses very little power A single stick of DDR4 draws about 2–3 watts at idle and 5–6 under load. Doubling capacity adds only 1–2 watts.

Heat output is negligible The difference between 8GB and 16GB of RAM is barely measurable without instruments. It won’t raise your case temperature by a degree.

CPU and GPU are the real power hogs A background browser tab uses more energy than the RAM difference. If you need 16GB, the performance benefit far outweighs the trivial power cost.