Sapphire Vapor-X HD 4870 1GB review
 

Sapphire should be praised for building such a nice rendition of the HD 4870 -- but in the end, while the power-saving is nice, and the cooler well-designed, the Sapphire Vapor-X is still a tough sell against the diverse and inexpensive competition when it comes to the ultimate measure of a video card: how many frames are being pushed a second.

http://www.neoseeker.com/Articles/Ha...s/vaporhd4870/