The DSC-RX100 supports a maximum video resolution of 1920 x 1080 pixels. That's over six times the video resolution of a 640 x 480 pixels digital camera, which is the most frequently found video resolution supported by high megapixel cameras that came out around the same time as this camera. 640 x 480 pixels is also supported by this digital camera. This camera also supports a video resolutions of 1440 x 1080 pixels. A video resolution of 1920 x 1080 pixels is equivalent to Full HD video. You will require a Full HD TV or better to appreciate this level of detail.
This camera's video resolution (1920 x 1080 pixels) is actually the best supported video resolution across all high megapixel cameras that came out around the same time as this camera.
The worst supported video resolution amongst comparable types of camera is 320 x 240 pixels.