When I was buying my GPU, I was told that past 1GB, it didn't matter (but got the 2GB version anyway). While often true, I really like high res textures, as in really like them. So much so, that for a week I played Skyrim with about 10GB of texture mods (after conflicts). I actually could tolerate the sub 1FPS I got from that.
OS: Windows 10 64 bit Professional
CPU: AMD Ryzen 5900X
RAM: 48GB
GPU: Radeon 7800 XT
CPU: AMD Ryzen 5900X
RAM: 48GB
GPU: Radeon 7800 XT