Be aware that Samsung may have customized the Display driver, so I would at least compare the one on their website with the Nvidia one if there are any deficiencies at all in display or suspend functions.

Win7 will often settle this up front by installing or delivering it's preferred Display driver via optional Updates, which I would also always give first preference.

Please keep us posted as you observe performance over the next few weeks. Samsung is the most problematic OEM we've dealt with here for Clean Reinstall so we are eager to learn more about it.