Radeon R9 290X Crossfire Game Requirement Analysis
Radeon R9 290X Crossfire is a solution of two Radeon R9 290X put together using AMD'S Crossfire technology.
Check the page of Radeon R9 290X to know more about its chip.
Crossfire relies a lot on proper driver support and may suffer from micro-stuttering in lower frame rates (below 30). Benchmarks indicate the performance is overall, is up to 30% better than a single Radeon R9 290X performing by itself but at times (depending whether or not the 3D game supports crossfire or in the graphics driver) it may perform worse than a single Radeon R9 290X. Expect this combination to draw up to 500 Watt though the average power consumption should be slightly lower.
Even the most demanding games will run at the highest settings.