With XP11 going vulkan and P3D5 going DX12. Which API do you think offers better performance gains? 

I wonder if they ever decided to go with vulkan for P3D if it would run better than DX12.

There have been numerous tests on this for various games. Below is from Kitguru's comparison in Red Dead Redemption 2.

Link to full test

My opinion is that they both leverage important and missing capabilities with current P3D and DX11.

(Xplane 11 with Vulkan is awesome, btw. Easily 35% more FPS on my rig)

 

Depends how the developer implements an API in their engine. I remember when DOOM came out in 2016, initialy the API was OpenGL, then they updated the engine to use Vulkan, an improvement but with some little lags (at least on my hardware), but now is better with DOOM Eternal. Other case with DX11 and DX12 was Battlefield 1, with DX12 was not a good combination, now the opposite with Metro Exodus, better perfomance under DX12 than DX11. I guess is relative. BTW I saw a comparative test using Aerosoft A330 and EGLL, I can say that LM did a great job porting to DX12 🙂

I'd hazzard a guess that going from OpenGL to DX12 or going from DX11 to Vulkan would be a nightmare if not impossible compared to OpenGL to Vulkan or DX11 to DX12?

Edited April 13, 20206 yr by Quasimodo

Part of the answer to this question will be known in a few hours. The other part, we will never know.

I think I posted this before, but anyway:

Source: https://www.overclock3d.net/reviews/gpu_displays/basemark_gpu_dx12_vs_vulkan_performance_review/2

Quoting parts of their conclusion:
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At 1080p, we found that in most cases that the DirectX 12 API offered the best performance, with Vulkan coming a close second while OpenGL sat at a distant third. Basemark GPU's OpenGL performance on Nvidia hardware is leagues ahead of AMD, with the RX Vega 56 and RX 580 both offering Basemark GPU scores of around 4000, while Nvidia's GTX 1060 offered a score of 8470. As usual, OpenGL performance appears to be an Achilles heel for Radeon, but thankfully this API has been mostly depreciated. 

Cranking things up to 4K we see that most of our graphics cards offered similar results when using all graphical APIs, with OpenGL having major performance consequences on our Radeon graphics cards. On the Nvidia side OpenGL, Vulkan and DirectX 12 offered nigh-identical performance levels, offering minimal variance in most cases. 
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So both Vulkan and DX12 are very similar, the difference is so small that end users will not notice it. Personally I am a big fan of DX12, specially because Nvidia creates customs API implementations of DX12 for their graphics cards that can provide incredible eye candy results, for example Nvidia Flow, Nvidia Waveworks, Nvidia ray tracing, etc.

If you google those technologies, you can see what is the future of the P3D platform.. V5.0 has already the first implementation Dynamic oceans with NVIDIA WaveWorks 2.0. 😉

Regards,

S.

 

Edited April 14, 20206 yr by simbol

3 minutes ago, simbol said:

V5.0 has already the first implementation Dynamic oceans with NVIDIA WaveWorks 2.0. 😉

Surfing simulator!

2 hours ago, DJJose said:

Part of the answer to this question will be known in a few hours. The other part, we will never know.

Except how many people will compare a loaded down P3Dv4.5 with a vanilla P3Dv5? I think the two videos we have seen where the fps shows nearly double the performance is the best that can be expected. 

Meanwhile the comparisons of what is the best software will go on...