do i really have a nvidia gerforce graphic card?

i am currently using a HP envy 15 notebook.

my specs are

-windows 8

-intel core i7-4700MQ CPU @ 2.40 GHz

-8GB ram

-64 bit operating system, x64 based processer

-HD graphic 4600

i have a nvidia geforce sticker on my laptop, but when i try to look for it nothing pops up. the only thing that tells me it is "or" was there is if i go into programs and features. it shows a "nvidia PhysX" icon and it's 78.9MB and version 9.10.0513. i tried looking in display adapters but it only have the HD graphics 4600. i haven't look in my BIOS yet because i dont really know where to look and cant find a video on how to do it on windows 8 (and i'm scared i might mess something up :P)

i'v also been playing my games on low and grown used to it because i know i'll never get to play on high or ultra high DX<...... i just want a laptop that can play games with at least with high quality (that isn't alienwear) but dont cost over 1k..... (and isn't an apple ;D)