3 Things to Know About RAM Capacity and Power Use

RAM capacity has almost no noticeable effect on power consumption The extra 2–3 watts from a second stick or higher-density module is negligible compared to what your CPU and GPU draw.

Even DDR5 modules use very little power A single DDR5 stick consumes around 5–7 watts at full bandwidth. Two sticks versus four adds a small amount, but 16GB vs. 32GB in the same setup makes no meaningful difference.

Your electricity bill won’t change The tiny power difference is swallowed by your other components, so don’t worry about RAM capacity affecting your energy costs.