I have had a Dell XPS 8920 for a couple of years. It came with a GTX 1050 ti which has worked well, but I want to upgrade to play some games such as Witcher 3 at high settings and to prepare for Cyberpunk. I already have a Seasonic Focus + 850w Platinum which should be enough to power any GPU. I want to upgrade to put an EVGA RTX 2070 XC in this machine, but I want to make sure that it will be compatible with the motherboard. Will it work, or should I upgrade the mobo first?