VRAM has become a marketing number that scares people into overspending or, worse, into buying a card with a fast chip crippled by too little memory. Both mistakes are common, and the right amount depends heavily on resolution, texture settings and whether you do anything beyond gaming with the card.
As a rough anchor: 8GB is now the floor and struggles with maxed textures at 1440p in newer titles; 12GB is comfortable for 1440p; 16GB is the safer choice for 4K or for keeping a card useful for several years; anything beyond that is mainly for creative work, large local AI models, or genuine future-proofing rather than typical gaming.
The rest of this guide breaks down VRAM needs by use case, gives sensible picks, and answers the questions people ask before choosing a card.