A:AnswerI bought the i9 16GB configuration with OLED screen and 3070ti. You can totally upgrade to 32GB (I did) but it is important that your RAM stick only be single sided. That is to say, only one side of the RAM stick should have memory chips on it. The reason is double sided memory sticks will NOT fit.
A:AnswerIt is not evo and I believe the display is freesync which these days doesn't matter on a screen attached. Though HDMI to a compatible gsync monitor it all Nvidia RTX cards have gsync though.