Battlefield 1 -

Furmark stress test 7950 dual-x boost oc 1050\1500 -

dota -

doom 2016 vulkan hight settings. One graph.settings for 2 videocards:

hd 7950 OC (1100\1500) - stability 60fps

hd 7950 stock (925\1250) -

hd 7870xt 2gb -

This game level most heavily loads the system per the full game. The most minimal frame rate in doom for your system can be found at this level.
This is the optimal setting for this video card. Reducing the settings to minimum slightly increases the minimum FPS in the game, but greatly reduces the quality of graphics.