In The Witcher 3 we found that both video cards provided the same gameplay experience at the same settings. The only time the ASUS STRIX R9 Fury was significantly faster than the MSI R9 390X GAMING 8G video card was when the highest settings were used like HairWorks and HBAO+. Unfortunately, HairWorks isn't playable on either video card. When the settings are lessened to make the game playable the performance difference shrinks to 11%.

In GTAV we were also able to play the game at the same settings. When turning up the graphics settings the MSI R9 390X GAMING 8G video card was actually faster, or right on par with the R9 Fury. At lower settings the R9 Fury pulled ahead but only by a 6% at best.

In Dying Light the same gameplay was experienced with maximum game settings. When we lowered settings the ASUS STRIX R9 Fury DC3 pulled ahead by 9%.

In Far Cry 4 we saw the biggest differences. The ASUS STRIX R9 Fury DC3 was able to do better with the Enhanced Godrays setting thanks to improved tessellation performance over the R9 390X. This allowed us to enable that feature on the ASUS STRIX R9 Fury DC3. However, when features like that are disabled the performance difference is only 7% between the video cards.

In BF4 the game performed exactly the same between the ASUS STRIX R9 Fury and MSI R9 390X GAMING with MSAA enabled. This game shows that when things like tessellation aren't supported in a game the performance between the Fury and 390X are equal.

For the most part both video cards were playable at the same settings and delivered the same gameplay experience. Only two games showed the most difference because of tessellation settings like HairWorks or Godrays. In the case of The Witcher 3 though neither card was fast enough to actually play with HairWorks enabled at 1440p.