Running one stick of RAM

[Drake5]

Is there any performance loss running just one stick of 2400MHz 16GB DDR4 RAM

Or is it better to have 2 and stay in dual channel mode

 

[Armageus]

On older systems (e.g. 2500k with DDR3) it was around a 5% penalty in gaming benchmarks (Synthetic benchmarks e.g. Sisoft Sandra etc were noticeable worse) - haven't seen any recent tests or discussion though

 

[8 Pack]

Really depends on platform and use. Amd big hit.. Intel in professional stuff render, encode etc etc a big lose... Gaming 7--10% or sometimes more depending on game, res and if cpu is main bottle neck.