Hello Rich,
Thanks for your comment,
I'm just end-user of this TCL with basic Linux skill,
and I explained what I did, pretty much simple and nothing fancy,
just install, and thats it,
no other fancy-things I did before producing the unexpected RAM issue,
just straightforward, create vm, Paravirtual, VMXNET 3, enable cpu/ram hot add, load iso, tc-install-GUI, tce-load Xorg-7.7
tce-load open-vm-tools-desktop.tcz also produces the same RAM consumption,
but at the moment I just use Core8.0 x64, just installed it successfully,
and for my personal case, the need to have desktop just use Tiny Core 8.0 x86,