3080 ti or 3080 upgrade ??????

[Marijanusic]

My system
MB- gigabyte b350
CPU- ryzen 5 2600

RAM-patriot 3000mhz 32gb
GPU- gtx 1080 strix
PSU- FSP hydro G 750
Monitor- LG 34GN850

I know this is probably stupid but i want a new GPU to play with more fps, I bought a new monitor that is 3440x1440 and the gtx 1080 struggles to keep the games at more than 100 fps and since i am used playing at high refresh rate i had

ASUS VG278HE at 1080p 
now my question is what do i do keep the said components and wait for new generations of GPU-s or get the said 3080ti and upgrade processor later ?

PS said gtx 1080 is already put on sale and i can get the 3080ti new for 1750 euro and 3080 for 1400 euro new with the current prices in Serbia

[GreatnessRD]

I'd say of the choices grab the 3080 and then use the extra 300 left over to purchase a new CPU, too.