Nikon D3x compared to Nikon D3s at different ISOs

What is the ISO cutoff when a 12 megapixel Nikon D3s is to be preferred over the 24 megapixel Nikon D3x? I’m speaking to both noise and color rendition, and taking resolution into account as an overall impression.

Obviously a 24 megapixel camera has considerably more detail than a 12 megapixel camera, and I’ve shown this previously in my DAP review of the Nikon D3x, including just how awesome D3x files can look when downsampled to D3/D3s/D700 resolution, cleaning up artifacts and looking ultra-clean.

Soon I will be posting an all-new still-life comparison between the Nikon D3x downsampled to Nikon D3s resolution at ISO 200/400/800/1600/3200/6400. Hint: there is a clear inflection point, and it means that serious shooters will want both a D3x and a D3s. I knew I saw something special in the D3s files that I posted a few days ago, and my comparison will clearly demonstrate what is going on.