Which CPU enough for GTX 1660 Ti | i3 9100f vs i5 9400f vs 9600kf

Which CPU is best for gtx 1660 ti - i3 9100f vs i5 9400f vs i5 9600k ? Test details Room ambient temp - 33 deg 1920 x 1080 , 1080p resolution + high-ultra detail settings CPU - Intel Core i3 9100f , i5 9400F , i5 9600kf - all stock speed CPU Cooler - CM ML120 RGB aio GPU - ZOTAC Gaming GeForce GTX 1660 ti 6G Motherboard - Gigabyte Z370 Hd3P RAM - Crucial sport LT 2x8GB DDR4 3200 CL14 (14-15- 16-35) CASE - Matrexx 55 Power - corsair cm750m 750 watts power supply SSD/Nvme - Crucial mx500 500GB m2 Gigabyte 500GB SSD HDD - 2TB toshiba 7200 rpm OS - Windows 10 pro OS build 1909 Monitor - Benq PD2700Q vmreviews [email protected]