<div id="linkdxomark">This a comment for <a href="http://www.dxomark.com/Cameras/Camera-Sensor-Database/Nikon/D5300
">this page on the website</a></div>The performance of the sensors (D5300-D5200-D7100) seems to be within margin of error.
But i wonder why only +0.2 bits of Color Depth and worse low-light score still gives D5200 better overall score but higher score of Low-Light ISO prevents D5300 from taking the same overall score. Seems that Color Depth influences overall score higher than Low-Light ISO score.
Also i noticed that D5300 scores are a bit lower because it's measured ISO is a higher (which leads to more noise under high-iso settings and lower DR&color depth under low iso settings) that of D5200-D7100. If we normalize it, i think D5300 score will be equal to them.
D5200/D7100 used Toshiba made sensors but what about D5300?
P.S: I think it's useless to make lens recommendations for D5200 for now, because it is now superseded by D5300, which with absense of OLPF achieves greater resolution/sharpness, though it can show similar results as D7100.