Sapphire Toxic Radeon HD4850 Videocard Review
 

Overall, Sapphire's attempt to make an already fast card pack even more punch while keeping it cool and quiet can easily be summed to be a success. Sapphire's TOXIC HD4850 version blends a good amount of looking cool while running remarkably cool as well.

http://www.tweaknews.net/reviews/sapphire_hd4850_toxic/