In sum, I'd be willing to bet that this time around, the benchmarks are real, and produced by nVidia. It is possible they may be skewed in one manner or another (using older drivers for ATI parts, selective elimination of certain games that performed poorly on nVidia hardware).
One small mention on using the older drivers, though: at this point in time, nVidia likely stands more to gain from driver improvements than ATI, and so using older drivers might not be horribly misleading.
One small mention on using the older drivers, though: at this point in time, nVidia likely stands more to gain from driver improvements than ATI, and so using older drivers might not be horribly misleading.