System requirements

I would like to know the following.
My intention is to buy Gigapixel but not sure what is meant with the requirements.

If I go to the page with system requirements , this line says: “Graphics Card (Intel) Intel UHD 600 Graphics or higher, 16GB system RAM”. Does this mean the CPU needs 16GB RAM?

For Nvidia and Radeon 4GB VRAM is required. I have Intel 630, but the VRAM is 128 MB.