Alright, here are some comparison shots. I compared the Tamron 24-70 G2 with the Nikkor 24-70 (non-VR). Not sure if they're large enough to get the point across, but in general, the Nikkor seemed to be a bit higher resolution, and sharper when zoomed in. The Tamron was brighter and seemed to have better contrast, and less distortion. Nikkor on the left, Tamron on the right.