We review the Radeon R9-290 setup in two way Crossfire, next to our default FPS benchmarks we do Ultra HD and FCAT Frametime measurements as well. Over the next few pages we’ll tell you a bit about multi-GPU gaming, the challenges, the requirements and of course a nice tasty benchmark session with the latest games.

Read more http://www.guru3d.com/articles_summary/radeon_r9_290_crossfire_review_benchmarks.html