While not quite as pretty as SSX, Cool Boarders has a much more solid frame rate. While SSX wildly jumped between around 60 - 30 frames per second. Cool Boarders manages to stay at around 60 fps. To me i'd much rather have a more solid frame rate then more flash. The environments themselves look great.
Snow looks realistic and there's lots of obstacles and rails to jump off of to do tricks.
The character models on the riders is also very good. Not quite as detailed as the ones found in SSX or ESPN Winter X Games but still really good. On the negatives of the graphics my only real complain is the camera. There are a few instances when racing against opponents that they get in your view and screw you up totally. This is a problem mostly in the Downhill Gates modes when your trying to line up for some of the gates.