i7 7700K vs i3 7100 - cpu comparison for Gaming

Specs

i7 7700Ki3 7100
Average Price$339$119
BrandINTELINTEL
Cores42
Threads84
Base Frequency4.23.9

Gaming performance (working with gtx 1080 Ti, Ultra quality)

FPS (i7 7700K)FPS (i3 7100)
destiny2 13198.6
overwatch 172130.1
GTA 9168.6
DOTA2 177133.3
CSGO 267202.2
Warframe 184138.6
rainbow6siege 10679.8
Fortnite 139104.4
Sea of Thieves 142107.5
A Way Out 147.2110.7
LOL 241181.7
Far Cry 5 11586.7
PUBG 9067.8
Call of Duty ww2 152114.2
Radical Heights 10176
Battlefield 4 7254.2
World of Tanks 7556.4
apexlegends 11082.9
Path of Exile 169127.3
Frostpunk 141106.1
BATTLETECH 9269.2
AirMech Strike 138103.9
StarCraft 2 161121.2

Conclusion

Price to Performance: i3 7100 is better. (65% Lower on Price, 25% Lower on performance.)

All resources

Games:
AirMech Strike Apex Legends A Way Out Battlefield 4 BATTLETECH Call of Duty WWII Counter-Strike: Global Offensive Destiny 2 Dota 2 Far Cry 5 Fortnite Frostpunk Grand Theft Auto V League of Legends Overwatch Path of Exile PlayerUnknown's Battlegrounds Radical Heights Rainbow Six | Siege Sea of Thieves StarCraft 2 Warframe World of Tanks
GPUs:
gtx 1050gtx 1050 Tigtx 1060 3Ggtx 1060 6Ggtx 1070gtx 1070 Tigtx 1080gtx 1080 Tigtx 2070gtx 2080gtx 2080 Tigtx 970gtx 980gtx 980 Tigtx Titan XRX 480RX 570RX 580RX Vega 64
CPUs:
i3 7100i5 7500i5 7600ki5 8400i5 8600ki7 7700Ki7 8700KRyzen 3 1200Ryzen 5 1600Ryzen 5 1600xRyzen 5 2600Ryzen 5 2600xRyzen 7 1700Ryzen 7 1700X