Which CPU is Better for Gaming? i5 vs i7 vs i9

Intel Core i5 9600k vs i7 9700k vs i9 9900k Test in 8 Games Games : Metro Exodus Battlefield 5 - 01:16 Assassin's Creed Odyssey - 02:30 HITMAN 2 - 03:43 Forza Horizon 4 - 05:27 Far Cry New Dawn - 06:31 Grand Theft Auto V - 07:40 The Witcher 3 - 09:16 System: Windows 10 Pro Intel i5 9600k 5.0Ghz Intel i7 9700k 5.0Ghz Intel i9 9900k 5.0Ghz Asus ROG Strix Z390-F Gaming GeForce RTX 2080 OC 8Gb 16Gb RAM 3600Mhz