You can quickly see the major change of the PowerColor PCS 4850 when compared to the reference design: the big copper cooler is made by Zerotherm and brings the card's height to two slots.
The card has two DVI ports, basically the most common output configuration these days. In case you need an analog VGA port you can use the included DVI adapter. When using an HDMI adapter (also included), you will also have access to HDMI+HDCP+Audio, which allows easy setup of a media PC. All recent ATI Radeon cards have a Realtek HD Audio device integrated inside the GPU silicon. This means that you don't have to connect any additional cabling to the graphics card for HDMI Audio. A new feature of the HD 4xxx Series is support for 7.1 HDMI audio, the older HD 3xxx cards supported only 5.1.
Here are the front and the back of the card, high-res versions are also available (front, back). If you choose to use these images for voltmods etc, please include a link back to this site or let us post your article.