Oh my specs are:
CPU: AMD Ryzen 9 5900X
GPU: RTX 3080TI 12GB
Memory: 32GB
Hope this helps!
and just to put some perspectiv on how long it takes me too upscale a movie to 4K.
A 5min movie takes about 3-4 hours to upscale if no framerate is changed (If i change the framerate it can take 4-5 hours to upscale it). Most movies that come out today have 1080p 30 framrate and i nomally change that to 60 frames when i upscale to get the video to flow better. I never go over 60 frames if the native video dont have it or more.
Because if the native video is 30 frames and i upscale it to lets say 120 frames the image starts looking odd and loses quality imo and it takes alot more hours to render the video.
What more can change the hours is whats in the movie too exemple below:
[AgentRedGirl] Amy's Big Wish Episode 3 - Part 5 - Double Snuggle
Took me 5 hours to upscale to 4K, native video is 447Mb and 4K version is 4,34Gb, here i added some settings that Rigid3D video did not have, so u see the Amys Big Wish, jump it takes in both size and hours.
and
[Rigid3D] Futa V x Meredith Stout - Venus In Furs
Took me about 3 hour to upscale to 4K, native video is 797Mb and 4K version is 1,23Gb
And both movies are about 5mins long and i used same settings on them and as u see the hours change.
So if a 5min movie takes about 3-5 hours, a 10min video is double that and so on....
Important to note is these hours change depending on what rig u have and what program u use to upscale ofc.
This is just mine oberverstions and have to remember that any change u add to the options in the upscaling program will add to the hours redering it.
Hope this explains some things