Question Why Better performance with DX11 v DX12

[Popikaify]

Why am i getting around 60 more FPS while using DX11 in WoW with 7900gre and 7800x3d ? how is that making any sense?

 

[BFG-9000]

They are different code paths, and particularly for DX12 the game developers have to implement things that used to be done in the driver. So while DX12 can offer better performance than DX11, it doesn't have to, particularly if developers are adding way more eye-candy features allowed by the newer API when they have to code specifically for it anyway. That's why games looked much better but were slower in DX9 than DX6.

So yes, either worse tweaking and optimization, or more workload from added resource-intensive features, can easily make DX12 slower than DX11. For WoW in particular it used to mostly be an nVidia problem:

but that got patched long ago. If there are now problems with RX7000 series then you'll have to wait for the game developers to patch that too. With DX12 being so low-level it's more on the game developers than the graphics driver team to fix it.