Mixing RAM sizes vs matched pairs: Matched pairs are faster, mixing works but loses dual-channel performance

Mixing a 16GB stick with two 8GB sticks gives you 32GB total, but you lose full dual-channel speed. The system runs in “flex mode” — only the first 8GB of the big stick pairs with one 8GB stick, leaving the rest single-channel. You’ll notice the hit in gaming or video editing, but not in basic office work. Matched pairs are worth the extra $20 for better performance.