Benchmark Reviews posted a review on the Sapphire Radeon HD 4870 Toxic Video Card

Anyone who has heard of ATI video cards has probably heard of Sapphire Technology. Sapphire is the largest producer of AMD/ATI graphics products in the world, and do far more than rebrand a product with their own label. The Radeon HD 4000 series launched with tremendous success not long ago, and Sapphire has tweaked the design to produce their own high-performance Toxic Edition of the popular Radeon HD 4870 video card. In this article, Benchmark Reviews tests their graphics card against the competition to find out if a factory-overclocked model is worth the money.

Sapphire Radeon HD 4870 Toxic Video Card Review