i feel like this did not answer zenii's question
More VRAM is NOT like having more Framerates. The more you have of one of those (framerates), it just ain't going to matter once you get to a certain point.
Having "more framerates" won't be that useful, once you get to a certain point. I can understand people debating say 30FPS, 60FPS, and even maybe 120FPS - but I personally don't think say 300-400 frames will be very playable. It'll just be too fast and unplayable. It won't be good for your graphics card's lifespan, either - you'll burn it out. You're likely going to cap it somewhere and/or throw VSync On, at some point.
More VRAM will be useful - especially for having more buffer-space open for things like throwing it up to higher resolutions (i.e. 2K/1440p or 4K) & throwing on more graphics features.
- INMATEofARKHAM likes this