So i want to add more ram in my laptop and i do a calculate of my ram speed the result is 2660 sometimes 2659mhz, should i buy 2400mhz ram or 2666mhz my ram close enough to 2666 but im not sure. Laptop spec:
-Ram DDR4 4GB
-AMD Radeon 530 ati
-Intel core i5 1021u0
Sorry for my bad english