XFX R9 290X Black OC Edition Graphics Card Review with Mantle
 

"Today on our test bench we have a Radeon 290X from XFX, the R9-290X Black OC Double Dissipation. With custom design and expanded voltage tweaking it aims to exceed anything we have seen from a 290X to date. We will be putting it through a selection of real world tests to establish how it performs in the latest games... and taking a look at AMD Mantle too."

http://www.hardwareheaven.com/review...roduction.html