Not the maximum, but enough for my work.
Then I resized the all images to 1K. This is the best way to get high-quality images for Artstation and the web without huge file sizes.
In total, all 17 images were rendered in 40-60min - simultaneously.
How would you have rendered this without V-Ray Cloud?
On my Dual Xeon E5 2670 - 32 Threads - 2.60Ghz - 64 GB Ram, which I use on the farm, such a render would have taken much longer. I conducted a test with another image and the render took about five hours, versus 30 minutes with the same settings in V-Ray Cloud.