[SOLVED] Can I put these two set of RAM together?

[nobodytrust2008]

So I currently own this PC with the specs of:
B350M Mortar
Ryzen 3 1600
Nvidia Galax GTX 1060 6GB
GEIL DDR4 AMD EDITION EVO POTENZA PC19200 Dual Channel 8GB (2x4GB) 16-16-16-36 GAPB48GB2400C16DC.

Will I be able to put this RAM of
GEIL DDR4 AMD EDITION EVO POTENZA PC21330 2666MHz Dual Channel 8GB (2x4GB) 19-19-19-43 GAPB48GB2666C19DC
into my PC set right now? since the same set is not available anymore.

And I have another question, which do you think is better?
A. Adding this
GEIL DDR4 AMD EDITION EVO POTENZA PC21330 2666MHz Dual Channel 8GB (2x4GB) 19-19-19-43 GAPB48GB2666C19DC

or

B. Adding this
GEIL DDR4 AMD EDITION EVO POTENZA PC21330 2666MHz Dual Channel 16GB (2x8GB) 19-19-19-43 GAPB416GB2666C19DC

 

[Pickachu]

Your first ram kit is 2400mhz and the one you want to buy is a2666mhz, the speed of the 2666mhz kit will reduce to 2400mhz.
Dont add 2x8kit to your 2x4 kit.
Replace your 2x4 kit with the Geil ddr4 2x8 kit, but with lower cl.
I would try to get faster ram...

 

[drivinfast247]

RAM is only guaranteed to work together when bought as a kit.