RTX 3060 Ti vs. RTX 3090 | How Big is The Difference?

PNY GeForce RTX 3090 24GB XLR8
Gigabyte GeForce RTX 3060 Ti Gaming 8GB
intel Core i7-10700K
MSI MAG Z490 TOMAHAWK
Samsung 970 EVO Plus SSD 1TB
Corsair RM850x White 80PLUS Gold 850W
RAM: 32GB (2×16) DDR4 3600MHz CL16
CPU Cooler: Corsair iCue H150i RGB PRO
Games : 1440p / Ultra
Hitman 3
Cyberpunk 2077 1:04
Assassin’s Creed Valhalla 2:13
Horizon Zero Dawn 3:19
Resident Evil 3 Remake 4:30
Watch Dogs Legion 5:36
Shadow of the Tomb Raider 6:42
Red Dead Redemption 2 7:47 .