Is RAM shared between the CPU and GPU?

Discussion created by kevin59 on Jul 17, 2019
Latest reply on Jul 17, 2019 by benman2785

I have just bought an Asus Laptop equipped with an AMD Ryzen 5 3500U CPU and an AMD Radeon Vega 8 GPU.

My Laptop is running Windows 10 64 bits. It has 8 Mb DDR4 RAM installed but only 5,95 Mb RAM usable according to the System Info Windows menu.

I tried unsuccessfully several tips to increase the amount of RAM usable (msconfig).

I wonder if the GPU uses some of the installed RAM and if it could explain why the CPU cannot use all the installed RAM.

The BIOS is American Megatrends version 302. There is no memory-related parameter in the BIOS.