Bottleneck calculation for AMD Ryzen 9 3900 and NVIDIA GeForce RTX 3090 with screen resolution of 1920 × 1080 pixels for No Mans Sky.
AMD Ryzen 9 3900 is too weak for NVIDIA GeForce RTX 3090 on 1920 × 1080 pixels screen resolution for No Mans Sky.
This configuration has 32.1% of processor bottleneck .
When playing games your graphic card won't perform on maximum possible performances (won't be utilized to the maximum), because you processor won't process and deliver data fast enough. This theoretically means that utilization of you processor will be on maximum and the potencial of graphic card will not be completely used.
While playing No Mans Sky game, processor AMD Ryzen 9 3900 will be utilized 100.0% and graphic card NVIDIA GeForce RTX 3090 will be utilized 67.9% .
Processor bottleneck is worse, than graphic card bottleneck, because utilization of your processor will be on maximum and it will throttle other programs that are ran in background. Also you won't experience maximal performances that your graphic card offers.
You can resolve this by upgrading your processor or by downgrading your graphic card. Downgrading your graphic card doesn't make much sense and in that case is better to leave current graphic card in you computer.