x86 Maximum RAM?

Because I don’t know where I can query to the answer to this question.
Check the WIKI also didn’t see it.
If someone can tell me the official answer page so much the better.

I don’t know on X86, Routeros maximum can hold to how much RAM with use.

Because RB850GX2 unable to cope with my 300 m / 100 m Internet speed, is really sad..
I just from RB450G upgrade to RB850GX2..Very awkward

Hope to be able to assist, thank you.

By virtue of being x86, 3.5GBs is the maximum amount of memory RouterOS can address. You can have more, but it won’t be usable.

This is a hardware architecture limitation, not a RouterOS limitation.

It will recognise and use 1.9GB ram and is ROS limitation.

In this regard
With 2 gb of RAM on X86 used should be the maximum limit
Thank you for all your assistance:)

Does this seemingly odd limitation include KVM guests or just ROS itself?