8GB RAM in Single Channel vs in Dual Channel?

[Habibullah.Samander]

My laptop supports 16GB RAM in dual channel mode, but now it has 4GB RAM in it. I want to upgrade my RAM from 4GB to 8GB. Is it better to use 2 4GB sticks in dual channel or 1 8GB stick in single channel? What will be the performance difference?

 

[Martin]

Dual-channel is always better.