Reposting and editing updated impressions from the Digital Foundry thread as this is a more appropriate place:
I am way below minimum but the game is still very playable. Here's what I have:
-Core2 Duo E8400 3Ghz
-4GB RAM
-Geforce GTX 750 (1GB)
-Windows 10 Pro
I can actually play the game at 1080p with medium settings at resolution scale of 66 but I lowered it to 720p to have more headroom. Unfortunately the framerate can't quite stay at 60fps, it fluctuates between 52-60. and 57-60 in training stage. It doesn't matter how low I go I can't get it to solid 60fps. I tested it at 640x480, resolution scale at 0, everything at the lowest, and the framerate didn't stabilize a single bit, GPU usage was ridiculously low. CPU usage wasn't too high either.
Pics of the game settings, followed by minimum recorded framerate and maximum recorded framerate:
-Maximum playable settings:
-Lowest settings:
That's right, no difference. Disabling vsync through Nvidia CP helped the game a lot. No longer do I notice any input delay inconsistencies and can pull off links with ease.
I thought I was CPU limited at first, but then I turned off bsmoothframerate in Engine.ini to uncap the framerate, making the game run as fast as the framerate runs
(of course I'll never do this online) and the game goes to all the way up to 100 fps in training stage! and up to 80 fps in the others.
Video of it in action:
https://www.youtube.com/watch?v=h8hvXHE7NNw
Turning off bsmoothframerate and putting on vsync so it doesn't go all speed-crazy makes the game run with a lot less framerate variations, rock solid 60fps in training stage now, 58-60 fps on the other stages. It seems bsmoothframerate=true is the cause of the problems on my aging PC.