Adding ram in quad/dual channel setup?

[Fractal13]

Thinking of getting 2x 8gb dominator platinum or similar. If I want to upgrade in the future, by adding another dual channel kit, will I lose a any performance compared to if I had bought a 4x8gb kit at the beginning? 

[TheKDub]

1 minute ago, Fractal13 said:

by adding another dual channel kit, will I lose a any performance compared to if I had bought a 4x8gb kit at the beginning? 

Nope.

[Oshino Shinobu]

Nope. Quad/dual/triple channel is dependant on the board and CPU to manage. There's nothing special about "dual channel RAM" or "quad channel RAM", it's just a marketing tactic for those who don't know much about it. 

 

Assuming that they share the same specs, two sets of "dual channel" RAM will perform the same as a set of "quad channel" RAM, as both will run in quad channel (provided your board supports it and you put them in the correct slots)