They stack nicely and work very comfortably in multi GPU Workstations. NVIDIA GeForce RTX cards expel the heat directly out the back of the system, known as blower cards, are the best choice for this. When doing so, sufficiently cooling your system becomes very important.
However, if you want the absolute best performance, is the way to go as we all know that Redshift supports a maximum of 8 GPUs per session. It is very good at utilizing multiple GPUs simultaneously, so installing many graphics cards into your system is a great way to boost performance further.
Thanks to good multi-GPU performance scaling, stacking several of those cards would outperform a single RTX 3090.
