Linux (UBUNTU) + AMD - which card to choose?

XYW4MDVA-2021323113941:34716d8b38995d20b67a81c7f5d8f6f2ced12b5022da617260708a2d0393a7fd

I’m setting up a couple of new PTB systems for non-human primate visual system experiments. I’ll be building the linux PCs from separately purchased parts and installing whatever stable (non-beta) version of UBUNTU is advisable. Each PTB PC will be connected to a VIEWPixx display running at 1920x1200@100Hz, showing dynamic color stimuli (similar to those described here: Novel Color Stimuli for Studying Spatial Attention | JOV | ARVO Journals).

In general I like to buy the best hardware I can afford (with the caveat that it doesn’t make sense to spend money on features I won’t use).

It seems like the AMD Radeon Pro WX9100 is their current top-of-the-line card. It also seems like at least one other user, @antimo, is using that card almost successfully. Are there other AMD cards to consider? Should I wait and make sure Antimo is able to work out his concerns about dithering?

Looking forward to hearing from Mario and other users. Thanks!