The highest video resolution supported by the DSC-RX100 is 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 digital cameras that have been around for a comparable time to this camera. 640 x 480 pixels is also supported by this camera. This digital 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 digital camera's video resolution (1920 x 1080 pixels) is in fact the best supported video resolution amongst all cameras that were released more than two years ago.
A 320 x 240 pixels video resolutions is the worst supported video resolution across similar types of digital camera.