I have been noticing some issues that seem like resource exhaustion type slow downs when memory usage gets high but still not more than 65% of system memory. I have AMD A10-8770 PRO CPU with integrated "R7" graphics and 16GB DDR4 RAM, of which 1GB is "dedicated" for iGPU (no option to change in BIOS). When I first boot the PC into Windows, usage of this 'dedicated' VRAM is only about 180MB (because nothing requiring much VRAM has been launched). But after using Firefox for a while, VRAM utilization goes to 800+ MB. Even after closing all apps and walking away from the PC for 15, 20, 30 minutes, VRAM utilization stays the same pretty much until I restart the PC, like the AMD graphics driver (or Windows) is not releasing the VRAM. e.g.