Noise

The D3200 delivers solid quality images and relatively artifact-free noise reduction in its JPEGs up through ISO 400. Where many manufacturers choose to agressively blur rather than have color noise, Nikon favors the opposite approach. As a result you see quite a bit of color noise as low as ISO 800, but it retains more detail than its cohorts through ISO 3200. That said, I probably wouldn't shoot JPEG above ISO 400.