ok thanks i ll go with the 16 gb thenYou should get 2 x 8 GB sticks. Games these days, regardless of what people say, run better with higher amounts of RAM.
IE: I have 32 GB of RAM and noticed a significant amount of smooth gameplay with Fallout 76 versus having 16 GB.
In essence, the more RAM the better. You don't want to transition towards a game that has memory leaks such as FO4, or an unfinished game such as PUBG in the future because of friends wanting you to play it and your game runs trashy due to the 8GB of RAM, right? I'd suggest 2 sticks of 8 GB equaling at 16GB total. Or 2 sticks of 16GB equaling out at 32GB.