Video Card Drivers for #202204081225 are resided on the directory /usr/X11R6/lib[64]/modules/drivers/ or /usr/lib[64]/xorg/modules/drivers/ for #202205051707 and #202205051716 respectively.
The RAM usage for a particular video card could be calculated using the following equation:
$$ \begin{align} R &= x \times y \times bpp \div 8,388,608 \\ \text{where}\\ x &= \text{Horizontal resolution}\\ y &= \text{Vertical resolution}\\ bpp &= \text{Bit depth} \end{align} $$