instrument track vs MIDI track

I am looking for saving the CPU usage and I heard about the MIDI tracks/channels used as multitimbral instruments. Do you have any experience with that issue? Does the usage of multitimbral instruments as MIDI tracks instead of separate instrument tracks reduce the CPU? T

It let’s you use one instance of a VSTi for multiple sounds, thus saving CPU usage.

Thank you. What is the difference in that case between instrument ad MIDI track? How much does it reduce the CPU? 20%, 30%?

Depends highly on what kind of software/hardware combination you have. Why don’t you just try out yourself?

Midi track allows you to use multi-audio outputs too.