Does it matter how much memorie a video card has

I saw the kite demo run on the Titan x with 12GB if I had a card with 2GB in it could I do the same thing

Hi. certain effects like bloom or DOF or etc will use low amount of video memory . but a lots of video memory will be dedicated to Textures . of course the graphic chip is another think ( GTX 760 or 770 or 980 ).

Example : GTX 760 with 2GB of memory you can play a modern game ( Witcher 3 ) in graphic settings of ( texture = Medium, bloom = on , DOF = off , View distance = medium ) in solid 30 fps.

I believe that is what the “scalable” feature is about when you create a new project. It sets your project up to be played/viewed, using the BaseScalability.ini with the best options on the user’s GPU (video card). From my understanding, this is also the featured needed to build console games…

UE4 Doc

Thanks for your anwsers