Texture Streaming vs RAM memory

Hi unity team! We now use Texture Streaming for our project - work really nice!

I want ask about RAM memory, not GPU memory.

When game start, unity not load textures from DISK, when textures became close - unity read texture from DISK to RAM, and move to GPU. ok...

When texture become far, unity remove that texture from GPU.

but:

Unity will cache all loaded mip maps in RAM after read from DISK,
or it will be remove they from RAM too - when texture become far?

 

up

 

It interests me as well. Will RAM be freed?

 

Same, this is vital information.