This is a 100% clip Nikon D3 ISO 3200 sample. Please compare it with an identically raw-processed (default exposure etc, zero sharpening, zero luminance NR, chroma NR set to 50) A900 ISO 3200 shot in slightly worse light (about three stops less illumination) which follows. This was output to 11.2 megapixels, very slightly smaller than the Nikon native file size, but the closest option provided in ACR 4.6's menu of fixed output scaling.