DxO Labs makes a popular program for correcting images and processing RAW files called DxO Optics Pro. The exciting news is that they have created a new Web site for systematically comparing the sensor performance for a variety of cameras, measured with their proprietary DxO Analyzer.

This is a free service. DxOMark has more than 45 comparative reviews of current and recent DSLRs and bridge cameras (digital cameras with a RAW format). You can choose which cameras to compare. There are both numeric and graphic comparisons.

Comparisons include the following:

• actual ISO sensitivity (which generally differs from the value reported by the camera),
• signal-to-noise ratio (SNR),
• dynamic range,
• tonal range,
• color depth and sensitivity,
• metamerism.

The site will be updated on a regular basis with new cameras.

http://www.dxomark.com/

[Sources: The Luminous Landscape, Online Photographer, Imaging Insider]