Just like every other game, playing Fortnite at 4K is super demanding, even a GTX 1080 Ti struggles to stay above 65 fps at 4K. Today we have a RTX 2080 vs GTX 1080 Ti Fortnite 4K performance comparison to see how well the new RTX 2080 holds up against the 1080 Ti in Fortnite at 4K.
Neither of the cards were overclocked, so the performance you see is pretty much what you can expect out of the box. Clock speeds are varying because of Nvidia’s GPU boost feature, this is automatic.
Both of these cards are priced over £750, so testing at anything below Epic setting would be pointless. Here are all the graphic setting used: