This version is mostly for 700 series so whoever doesn't have one of these cards should not install it.
I read someone installed it for his 780 and started to reach high temperature after idling bf3 for a bit.
Which never happened before, he reverted his driver and everything was fine again.
I don't think that's accurate Niao, nvidia have pointed out you still get performance gains on other series' GPU's too. So I don't think its a case of "don't install it if you don't have a 700 series".
If you want to wait, then I'd say wait till the full version rather than the beta comes out. Waiting won't make this version more stable as it isn't updated, they simply release another version if required
@Boozad : Well I just reported what I read. Doesn't mean it will happen to everyone. I think it is fair to warn everyone that someone experienced it.