4 Things to Know About Mixing 8GB and 16GB RAM Sticks

It will likely boot and run at 2133MHz Most modern motherboards handle mixed-size sticks fine, especially with standard DDR4 at 1.2V.

Dual-channel memory only works on matching pairs The system runs the first 16GB (8GB from each stick) in dual-channel mode, and the remaining 8GB on the 16GB stick in single-channel mode.

You probably won’t notice the performance difference Unless you do memory-heavy tasks like video editing or high-framerate gaming, the flex mode is fine for everyday use.

Check motherboard compatibility if you want to be safe A picky motherboard might not POST if sticks are single-sided vs. dual-sided or have slightly different timings. Check the QVL list if you’re worried, but most 2133MHz DDR4 sticks work fine.