Does a gpu make stuff load faster? Or just display smoother?

I don't even have a GPU.
I use onboard graphics. Intel hd 2000.
But my friend got a new gpu so he's gonna give me his old one.
And I'm just wondering if I would actually notice anything different using the gpu instetad of onboard?
The gpu is evga geforce gt 630.
I mostly just stream youtube videos in 1080p but sometimes I play games.
None of the games are really graphics intensive though. Minecraft. League of legends and DOTA 2.
And I use Windows 8.
Will I notice anything better using the gpu?

Zach

Definitely, provided that the GPU you are receiving is a better one than intel HD3000. A good GPU not only loads the screen faster (Frames per second), but also improves the quality of the game visuals. You need to enable features such as anti-aliasing, v-sync, etc. The higher the setting the better your screen quality, but the performance will be slower.

So, you should look for a balanced setting that gives good performance along with good picture quality.

Aditya B