We have a solution with 163 projects (do not ask me why) but It created an interesting case to compare how 32bit Visual Studio runs against 64bit Rider.
I am adding a screenshot of Task Manager with both VS and Rider sitting idle with the same solution open.
I do not mind (and actually would prefer) Rider consuming more RAM and work faster than doing some behind scenes optimization or something to consume less RAM.
However, I have no idea what is happening here and why Rider is consuming 2x more RAM than Visual Studio does. I did not measure how long it takes for each to open the solution or build all projects, but let's start with just idling with the solution open. What is happening with RAM in cases of Rider and Visual Studio?