Allen
Hotshot
Joined: Oct 1999
Posts: 8,855
Ohio USA
In the AMD presentation, Crosfired RX 480 out performed single Nvidia 1080 in Ashes of the Singularity (a DX12 title).
Some have questioned "how could that be"? Skatezilla and I gave some thoughts earlier in this thread. I thought it might be the graphics API.
Others are asking the same question in on-line articles -- because the AMD and Nvidia images looked slightly different. AMD has responded with the game settings for both cards. The settings seem identical. They used the AotS provided "in game" benchmark that the AotS developers themselves put in to compare systems -- which seems "on the up and up".
However, AotS uses "procedural" rendering. That is, it takes into account what it is running on and the game situation and then modifies what it shows you. So, in that sense, no two systems will have perfectly identical in-game images.
Fudzilla tries to explain it:
Quote:
...During AMD's product demonstration on stage at its Computex 2016 launch event, some noticeable differences could be distinguished between the texture quality of the Radeon RX 480 CrossFire demo and the single Geforce GTX 1080 demo. As many have noted, Ashes of the Singularity is a DirectX 12 strategy game that uses procedural generation for rendering textures, along with dynamic game character unit composition depending on the map situation. These rendering features will prevent any two running instances of the game from ever being identical..
Regardless, we are thankful that AMD's responses have shown to be transparent and cooperative so far during a few short email conversations on the matter...
My Summary: In brief, partly it is the Graphics API. It has been rumored elsewhere that AMD does a good job using DX12 and Vulcan because unique hardware support has been built into the AMD design for a couple years now. However, its only now that these APIs are being used in games.
