@bigcyco1 & abCasPeRR, thank you both for that piece of mind, that's very good to know.
I have another question on my mind. Is there any bother with using a card as a dedicated PhysX with this card? I have an old 768mb GTX 460 lying around, and am wondering on whether or not it would be worth it to use as a dedicated or not?
It actually might be worth it. The GTX 460 is a very good card. What you have to look out for in dedicated PhysX cards is that the PhysX card does NOT slow down the GTX 670, otherwise you will have worse performance. You can test it and see, I think the GTX 460 is good enough as a PhysX card.