fabiosun,
You previously asked about running the 2-Candle test in DaVinci Resolve with two Radeon VIIs. I finally got around to testing. Presently, neither WEG nor RadeonBoost is enabled, and no GPU DeviceProperties are being injected, so everything very stock. In DaVinci Resolve, the GPU Preferences were set to Auto with both GPUs active; 66 nodes were left active (the maximum). macOS was Catalina 10.15.6-ß2.
When one Radeon VII is used, the result was 16 fps. From my searches, this is a typical result for one Radeon VII (and the same result commonly observed when using one 2080 Ti).
When using two Radeon VIIs, the result was 24 fps as shown below 35 fps. I plan on converting both Radeon VIIs to water-cooled in a week or so and will then overclock them and re-test.