Question CPU for 280hz ?

[akkour]

i mainly play csgo and bf4, ive i5 9400f which hits 240+ fps since they are old games, but the cpu struggling in new games like bf5 and bf1, my monitor is asus vg259qm, my budget is around 300 JOD, i might upgrade by buying used but i prefer new, buying from amazon and ebay isnt possible since high customs and taxes etc ... im thinking of i5 12400f and new motherboard, i already have 8x2 ram 2600mhz, so is the i5 12400f good for 240hz or 280hz ? or should i get a K verison? or go to i7 ?

 

[helpstar]

which GPU are you using?

 

[akkour]

which GPU are you using?

Gtx 1660, but its not the cause of lower FPS since i play low and not utilizing maximum gpu power, i get fps drops and stutters, and in bf when there are a lot of players fps drops to 90-100, cpu usage is always 100% in bf1 and bf5.