This is interesting.
The chart bottom right, something new CIG put in, from left to right, my understanding how this works:
Frame: the Frame Time output measured in M/s
GPU: the Frame Time the GPU can render in M/s
RT: the frame time the CPU Render Thread can render in M/s, usually what is called the Main Thread, its the lane used for communication between the CPU and GPU.
MT: the frame time the rest of the CPU can render in M/s (Multithreading) used to calculate lighting, physics ecte...
So as it is in that screenshot my Frame Time is 48.6 M/s, that equates to 20.6 FPS, if you look at my OSD top left you will see its reading 21 FPS.
GPU is 27.8, should equate to 36.8 FPS but my GPU is so bottlenecked its actually in a downclocked power saving state at 2100Mhz, should be about 2600Mhz, so in reality over 40 FPS (4K) Very High / Very High Clouds
RT 20.6, that's 49 FPS, what that means is i'm actually not bottlenecked by the Render Thread, or Main Thread if you like, which is usually the case in gaming, in fact 99% of the time that's the problem if you have a CPU bottleneck.
MT is 46.9, near the same as the Frame Time, that's my bottleneck, 46.9 M/s is....... 21 FPS. there it is.....
@pete910 You're going to love this, i don't have enough cores. and look at the CPU in the OSD, 83%, the remainder is probably largley due to the Main Thread not being fully stressed.
Holly Crap....
Ryzen 5800X
RX 7800 XT.