Yes! But around 50% are tech savvy and for the rest it would be like a quite new thing for them. But I know that they are going to like learning all about graphics and and all that..
Wow, quite a tricky one, obviously you don't want to make it too differcult to understand for the "noobs" but you also don't want to make it boring for the tech savvy part of the audience.
Perhaps talk about the evolution / progression of GPU's or how far, visually, games have come (Direct X, Tessellation ETC..) with visual examples?
Though this is really industry specific rather than nVidia specific.