I have tested original Radeon Boost on Shadow of the Tomb Raider on an RX Vega Liquid and RX5700XT at 2K and 4K.
That was using the "Hialgo (Chill, Boost, Switch http://hialgo.com/home.html)" Boost Technology.
In that case I found that drop in resolution when the character was running and the FPS variation was headache inducing.
The FPS when running was still lower than the FPS with the character walking or standing still.
The FPS when just rotating the character using the mouse rocketed way above the FreeSync Range of my monitor, because I run the game with in game Vsync off, and, AMD had removed FRTC from Adrenalin 2020 at the time so there was no way to limit that Frame Rate. The reported GPU Power rocketed up when rotating with Boost on versus off.
As usual, like Radeon Chill, Radeon Boost is a nice idea, poorly implemented, just because of removal of FRTC / a few of the old Hialgo variables improrted into the Adrenalin Driver needing User ability to modify.
So it was pointless for me.
DX12 Variable Rate Shading information here.
Been around on Nvidia GPUs since Turing.
https://www.tomshardware.com/reviews/variable-rate-shading-vrs-definition-nvidia-graphics,6342.html
Variable Rate Shading is only just available on AMD GPUs on RX6000 series GPU on selected DX12 Titles.
It will be interesting to see how that performs eventually.
But again it is pointless for me because:
A. RX6000 series GPUs are not available where I am, even on launch day.
B. I am not even certain I would buy one if it were available right now until I am convinced the Radeon Adrenalin Drivers and RX6000 series cards are stable yet.
Thanks.
