It's been my experience that you want to stick with the manufacturer's laptop model specific drivers on laptops. I've read this on the net too. Before I read that stuff, I updated my drivers to AMD's latest about a month after using my THEN new laptop. Big mistake!!!
If memory serves me right, I think my frame rates suffered a bit. But the biggest problems were that I could no longer manually assign applications power profiles...also known as Switchable Graphics. That let's me decide if I want an application to always run in Power Saving mode (1.4GHz-2.7GHz CPU speed, use the integrated GPU) or High Performance mode (3.2 GHz turbo mode, switch to the dedicated GPU card if one is installed). AMD stopped support for Switchable Graphics in newer catalyst control centers and drivers.
I also updated the Grossfire "Dual Graphics" game profile list. That was my 2nd big mistake!!! Manually setting and saving of custom Crossfire profiles stopped working too as a result.
So I did a fresh HP factory re-install and everything was back to normal with HP's custom drivers back in place. Laptop motherboards tend to be a much more customized hardware than their desktop brethren. That's why their drivers tend to be so much more customized and specialized than desktop computer drivers.
Not sure this will be the case for a Nvidia card. It might be fine, but I'm skeptical.
I say... be willing to go back to a full factory re-install if you test out new drivers directly from Nvidia and it fails. In MY particular case, simply reverting back to an earlier restore point didn't fix it. Neither did re-installing the laptop's custom drivers fix it. Those new drivers and Crossfire profiles somehow screwed up my laptop so permanently that apparently the full factory re-install was required to bring things back to normal.
So stick with the manufacturer's drivers if I was you. Proceed with caution otherwise.
