This is a crop from the 10 Photos taken at ISO 12,800 with my Sony RX100M3 with no NR, blended using Stacked Median for people with older versions of Photoshop or are not the extended version that allows median blending. The noise is greatly reduced as you can see here. The picture before this is the original 12,800 ISO shot (1 of 10). These are SOOC, shot JPG, Default Settings in PS CC. The difference between the 3 is strictly the blending.