DDR4 3466Mhz model
DDR4 3466Mhz model
You're asking about the compatibility and performance when using a 3466 stick with a 2666 kit. It depends on the specific setup and components involved. If it works, all devices will run at 2666 in single channel mode. However, results can vary, especially in areas like XMP, and you'll need to experiment to see how far you can go with timing and frequency. It's not a straightforward conversion, so trial and error is necessary.
You already have a 16GB kit, and adding another 8GB gives you more capacity. Whether it boosts performance depends on your usage—more storage helps with files, apps, and backups. Consider selling the 8GB unit if you don’t need extra space right now.