The Tech Report published a review on the AMD's Radeon RX 460 graphics carded
A quote from the article:
AMD's Radeon RX 460 graphics card is its first to use the tiny Polaris 11 GPU, which promises a major boost in performance-per-watt for its price class. We put it to the test to see just what entry-level gamers can expect from a $109-and-up graphics card.AMD's Radeon RX 460 graphics card reviewed @ The Tech Report