Will adding another pair of dual channel sticks decrease performance?

[cronly.god]

I have 2x4 dual channel ram and I wanna know if i add another 2x4 of the same model keep the same performance .

 

[CountMike]

Only if you need more RAM. ie. if programs use 90%+ of free memory.

 

[Peter Martin]

exactly what CountMike says. if you are always using up most of it, you need more to keep up performance. But I imagine it should also not decrease your performance. I would still get a set of 4 matched rather than just add. no guarantee that will work, but I wish you the best of luck.

if you are a big gamer, you probably need 16GB