"NVIDIA release a heap of drivers. It seems there's one coming out every week lately. Unlike AMD, NVIDIAs betas are really pushed throughout the enthusiast community. If we did the same kind of thing with the NVIDIA ForceWare drivers as we do with AMD and its Catalyst drivers, I would be testing ForceWare drivers 24 / 7.
The ForceWare 266.58 driver set is more important, because unlike a lot of other drivers this is a WHQL one; which for people who prefer to only upgrade when WHQL ones make their way to the market, it could well be time for an upgrade. With a whole lot of new models recently as well, there's finally a chance to get off those betas and get on some proper WHQL ones. So what are the performance improvements? Let's take a quick look at what's in the release notes before we get stuck into the benchmarks."
Any major computer upgrade generally requires a full software reinstall too. No so if you heed the advice in the guide to Upgrading a Motherboard without Reinstalling. PCSTATS Tips