So I bought a HP laptop today, and it says I have the GeForce 635M 2GB dedicated. http://www.johnlewis.com/hp-envy-dv6-7331sa-laptop-intel-core-i7-2-3ghz-8gb-ram-1tb-15-6-beats-audio-black/p588399
So when I go to dxdiag or advanced settings in screen resolution, the graphics card thats showed is...