Dual graphic card best approach?

Hi,

I installed Linux Mint on my Acer v3 with 2 graphic cards (GTX 760M and Intel). Xorg seams to use just Intel card, although I installed nvidia drivers. Moreover my laptop is quite warm, so I guess nvidia is working all the time.
Last 2-3 days I’ve read about different solutions like Bumblebee, switcheroo, deactivating one card in BIOS, etc. But I have no idea if I should use one of them.
What is the best approach for managing dual graphic card situation under linux now? Does official driver manage that?

Thanks.

I kind of had the same question in this post.