Dirt Showdown is the latest title in the franchise from Codemasters, based around the famous Colin McRae racing game series, although it no longer uses his name, since he passed away in 2007.
We enabled the game across three 24 inch screens at 5760×1080 resolution, with the settings shown above.
EDIT: We updated our results a few hours after publication after we discovered an (as yet) undetermined glitch with the secondary 3960X EE system and the beta AMD driver. We had to reinstall the operating system and the driver as the HD7970 GHZ core seemed to be downclocking when running at 5760×1080 resolution. This was brought to our attention when we noticed 3DMark Vantage scores were dropping below 20,000.
After getting the matter resolved, the HD7970 GHZ Edition claimed the top spot averaging 78 frames per second.