PS5 shares memory with the GPU, doesn't it? Which is different to just using RAM to load games. I play modern games with RX 5700XT 8GB video card and 8GB RAM m

PS5 shares memory with the GPU, doesn't it? Which is different to just using RAM to load games. I play modern games with RX 5700XT 8GB video card and 8GB RAM machine without issues.... So maybe there's not much need for more memory...