OK came around to update my Manjaro to latest 21 version including 5.14rc6 kernel, MESA 21.6.1-1, activated nggc at the environmental variables. (next MESA will be using by default ngcc)
Code: Select all
RADV_PERFTEST=nggc
Set the same undervolt/overclock settings at corectrl as on Windows (to make sure GPU/RAM run at same speed)
Code: Select all
5700XT = 80 fps when the spire & ships appear, 84-85 fps otherwise (Linux)
Code: Select all
5700XT = 70 fps when the spire & ships appear, 80 fps otherwise (windows)
FYI on Linux using MSAA 2x instead of 4x doesn't alter the visuals, they still remain smooth lines contrary to Windows.
Code: Select all
5700XT = 112 fps when the spire & ships appear, 124 fps otherwise (Linux with MSAA 2x)