The highest video resolution of the HP HD 2300 is 1280 x 720 pixels. That's over three times the video resolution of a 640 x 480 pixels webcam, which is the most common video resolution. Webcams that have been on the market for around the same time as the HD 2300 maximum video resolutions range from 640 x 480 pixels (worst) to 1920 x 1080 pixels (best).
We think you might also be interested in some of the alternative webcams that have a video resolution of 1280 x 720 pixels currently available including the HP HD 2200 which is cheaper; or the Polycom VVX ($16.95) which has a better Rating.
If you would prefer a webcam with a higher video resolution then you might want to look at the Logitech CC3000e (1920 x 1080) which also has a higher rating.