I'm looking to upgrade my GPU to achieve smooth gaming at 4K resolution with 144Hz refresh rate. My current setup includes an AMD Ryzen 5 9600X and a Dell G3223Q monitor. I primarily play AAA titles and want to ensure I can maintain high frame rates. Should I go for an NVIDIA RTX 4070 or an AMD RX 7900 XT? Is there a significant difference in performance, especially with DLSS support? Any recommendations or insights on the best GPU for this setup would be greatly appreciated!