AMD vs Nvidia - DX11, Vulkan and Opengl comparison tests

[Nowinskit]

Those GPU's are overkill for Dota 2, the intention of test is to see which GPU brand has better driver overhead performance for Dota 2 and give some guide to community make their choice.

Tests realized under Windows 10 pro 64-bit. CPU used was a i7 3.6ghz Haswell with only 2 cores and 4 threads enabled to simulate a i3.

Opengl for Windows Nvidia GTX770 vs AMD R9 390 (390 has 50% more raw power)
https://youtu.be/xXuDXoeE8G8

Vulkan:
https://youtu.be/cmbNXyYddDg

Directx11
https://youtu.be/2P3vbCLKGtw

Coming soon: DX9 test

[MEATheals]

can you post the conclusions man? i really cant watch videos at work

[ナルゴ]

Gruia Novac původně napsal:

can you post the conclusions man? i really cant watch videos at work

AMD GPU + Vulkan is the more cost effective choice when playing low spec Source games like DOTA 2, compared to Nvidia GPU + DirectX

But entry-level gaming GPUs from both Nvidia or AMD will run Dota 2 fine.

[ManoFx]

Yea conclude the topic someone zzz ..

[N-GOD]

So you post a ♥♥♥♥♥♥ Nvidia vs some high end amd?

[Nowinskit]

The test was not done to say you need these powerfull GPU's for the game. The point was to see which brand has better driver working at each API with this game. That's the point to downgrade CPU to 2 cores and resolution to 720p with overpowered GPU's, is the way to find which brand driver can do more FPS with less CPU resources(lower overhead).

AMD OpenGL driver is very slow. Vulkan only works fine for AMD because it were created for GCN architeture.

Only API which showed a big difference in performance there was OpenGL which probably dont matter for Windows users, other API's showed small differences.

That mean than with OpenGL for AMD you need to buy faster/expensive CPU's to get better FPS while with a NVIDIA GPU you can save money with CPU.


For the guy whining about GTX770 against AMD card, 390 is about 50% faster than GTX770 for triple AAA GPU-bound games which is not the case of Dota 2. Dota 2 cant even squeeze all power from GTX770 at 720p, if you pay attention for information of GPU and clock usage of GTX770 while playing you gonna see it was using 30% of the GPU. Yet R9 390 loose to GTX770 at 720p with a 2 core CPU in OpenGL API and in others it was almost same since CPU limited both cards.

[ᴻᴬᴶᴵᴮ]

do you feel lag play vulkan on nvidia?

[Nowinskit]

I dont record having issues with it, all worked fine. But for Windows users the best API for Dota 2 is DX9 on which the engine is built and has the highest FPS boost. DX11/Vulkan are only patches and OGL is a port from DX9. Vulkan and OGL would be necessary only to Linux users.

[ᴻᴬᴶᴵᴮ]

maybe i should reinstall my Windows 10 then try vulkan again on nvidia

[76561198277772333]

Have to change DX11 with DX9 I have problem with Dota after updates my pc specifically in the fights is restarted I change my Cpu fan or ram but is not worked plz help
My system hardwares :
Cpu: Intel pentium dual core E5300 2.60 ghz
Gpu :amd 5830 hd
Ram 4 gig
Plz help I don't have money for buy a new pc