only4k

Looking to build a new PC soon....But wanted some information on whether I should purchase two RTX 2080's or RTX 2080Ti. Reason why I was asking is because I will be purchasing the following monitor: Acer Predator X27 bmiphzx 27" 4K UHD (3840 x 2160) IPS Monitor with NVIDIA G-SYNC HDR 144hz...