Generally speaking, RAM and RAM performance is one of the most important characteristics of any server that is actually being used. Processing power (single-threaded/multi-threaded depending on application) is the most important, but without the RAM to handle it, it becomes nearly useless.
That depends heavily on what the server is used for… But yes, AI servers are full of RAM, and GPUs which have even more RAM on them.
Generally speaking, RAM and RAM performance is one of the most important characteristics of any server that is actually being used. Processing power (single-threaded/multi-threaded depending on application) is the most important, but without the RAM to handle it, it becomes nearly useless.