I'm assisting with a club design with almost 360° video. Ideally, we would like 12 outputs so we can blend the edges as we have 12 projector screens, all at 1920x1080 (side by side). What would you recommend to achieve this setup so it is the most stable? I'm aware of X4s and MST hubs, and read a few times that AMD cards seem to cause more headaches than NVIDIA (I believe it is driver related?), but if the suggested card(s) run stably, either brand works.
A few side notes: This will be for a custom build, with an i7 CPU. We have the output requirements, and minimally, we need to get 8 screens, with the goal being 12, so we are trying to design the system around our graphics card(s) and external hardware requirements.