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Doom Vulkan vs Open GL performance

N19h7m4r3 said:
It seems that only in DX12 and Vulkan does the TFLOP value of GCN cards actually hold some weight outside of compute tasks.

That DX11 bottleneck in GCN cards is horrendous, I just hope Vulkan doesn't fall into a ditch like OpenGL did.
Click to expand...

It will if Microsoft has anything to say about it :/

Just wait for the windows update that disables Vulken because it's a "security risk".
 
Not overly scientific, but I noted someone asked about he 390x.
Should note that I may be cpu limited i5 750 at 3.6 GHz, 1080p.

At the end of the level when the gate to hell is opened I got (mix of high/ultra);

openGL
Standing looking at the area before starting the event 70 fps
fighting around the gate thing 45-70 fps

Vulkan
Standing looking at the area before starting the event 92 fps
fighting around the gate thing 70-90 fps

In the following level when you go to hell I assume (ultra), in the first cave with no fighting

openGL 75-80
vulkan 97-105
 
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Nasher said:
It will if Microsoft has anything to say about it :/

Just wait for the windows update that disables Vulken because it's a "security risk".
Click to expand...

I hope not. Dx12 is okay and all, but MS trying to lock their games into UWP isn't right either.

I really hope more developers pick up Vulkan and from now on just create their projects from the ground up with it.

If a Vulkan patch can be this good, I can't wait to see what a from the ground up game using all it's features can manage.
 
Jack Bauer said:
Not overly scientific, but I noted someone asked about he 390x.
Should note that I may be cpu limited i5 750 at 3.6 GHz, 1080p.

At the end of the level when the gate to hell is opened I got (mix of high/ultra);

openGL
Standing looking at the area before starting the event 70 fps
fighting around the gate thing 45-70 fps

Vulkan
Standing looking at the area before starting the event 92 fps
fighting around the gate thing 70-90 fps

So similar to mine, about 30% then
In the following level when you go to hell I assume (ultra), in the first cave with no fighting

openGL 75-80
vulkan 97-105
Click to expand...
 
Did a little primative testing

OGL = 105FPS

Vulkan = 110FPS

Using 368.22, OC'd 980Ti @ 1400mhz, 1440p 144hz.
4770K @ 4.6ghz, 16GB DDR3 @ 2400mhz

One thing to note, I saw spikes above 144fps which means GSync (at least on this driver) isn't fully cooperating with Vulkan. Haven't updated drivers in a while though so may be sorted in a newer revision.

Certainly showing better signs then my limited exposure to DX12.
 
Some fantastic increases for GCN cards. Too bad Vulkan has a slow uptake but I think when DICE add it to frostbite we might see a turning point.
 
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One more comparison on the first hell level watching the hologram of the soldiers, 390x, ultra, 1080p

openGL ~70
vulkan ~95

No overall comparison on the whole level, but getting sold 100 fps which is much better than previously in earlier levels with mixed high/ultra. This could just be the level tho.
 
Jack Bauer said:
Not overly scientific, but I noted someone asked about he 390x.
Should note that I may be cpu limited i5 750 at 3.6 GHz, 1080p.

At the end of the level when the gate to hell is opened I got (mix of high/ultra);

openGL
Standing looking at the area before starting the event 70 fps
fighting around the gate thing 45-70 fps

Vulkan
Standing looking at the area before starting the event 92 fps
fighting around the gate thing 70-90 fps

In the following level when you go to hell I assume (ultra), in the first cave with no fighting

openGL 75-80
vulkan 97-105
Click to expand...

thats a nice boost of minimum fps 45 to 75, must make the game much smoother
 
AMDMatt said:
I can't record gameplay footage so screenshots will have to do, but the gains are real. :)
Click to expand...

I managed to get VCE recording with OBS working, but I had to use borderless and vsync on. If I didn't do either of these things OBS capture would fail and crash the video driver (hence the event viewer in the first video!).

As you can see its rigidly stuck to 60fps in the areas I've tested. I'm certain I would have had drops to 30fps previously (vsync bug).



In the first room of the game I went from 72fps to 114fps!
 
GTX 1080 here. I could see the 20+ fps improvement from Vulkan over Opengl but surely everyone saw how laggy and unplayable it was. I couldn't play more than 5 minutes before going back to super smooth opengl
 
fs123 said:
Some fantastic increases for GCN cards. Too bad Vulkan has a slow uptake but I think when DICE add it to frostbite we might see a turning point.
Click to expand...

never needed devs to take a leap of faith as we do today, just ditch directx, if triple A games start rolling on vulkan at release day, or exclusive API, in less than 5 years we might get an alternative OS to chose from other than windows.
i wish PC gamers support doom dev by buying their game
#votewithyourwallet :D
 
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Boo! Fired up Doom tonight specifically to see how great Vulkan runs, and it breaks Flawless Widescreen compatibility so I can't play the game at 5760x1080 without everything being horribly stretched and out of proportion. :(

So my options are Vulkan at 1920x1080 (where the benefits won't helpful) or OpenGL at 5760x1080. Shame the developers couldn't get the aspect ration right and we have to rely on one dude in his bedroom fixing it! :eek:

Oh, well, while I'm here I may as well spend some time shooting a few demons in the face... :D
 
The-Hoff said:
GTX 1080 here. I could see the 20+ fps improvement from Vulkan over Opengl but surely everyone saw how laggy and unplayable it was. I couldn't play more than 5 minutes before going back to super smooth opengl
Click to expand...

nvidia doesnt have async, devs need to go through pre-emption, which is a lot of work for an end result that deliver roughly the same performance as opengl.
nviddia should stick to opengl and dx11 for optimum performance, when AMD have to wait for vulkan dx12 for their optimum.
 
Is Vulkan that good or is OpenGL just bad?
Vulkan looks good compared to DX12 because DX12 is being compared to DX11 while Vulkan is compared to OpenGL. If only there was a game that supported all 4.
Also, while I'm not arguing Nvidia gain as much as AMD in Vulkan, don't Nvidia generally do better in OpenGL, making the gains look worse?

I also doubt this is a must own game. I detest FPS games so can't believe this is a game I'd enjoy.

On a side note I believe Dota 2 supports OpenGL, DX11 and Vulkan.
 
Gibbo said:
That is huge!
What about 4k and 3440x1440?
Click to expand...

Tried stock RX480 on latest 16.7.2 drivers on Windows 10 with 6700K @ 4.5GHz on my LG 34UM95P @ 3440x1440 in ultra - I tried looking for some way to run a benchmark but couldn't find one.

So I picked a spot to the left of the stairs in the room after getting the shotgun and get rid of all the zombies and focus on the ball of fire.

OpenGL got 42
Vulkan got 59

It was pretty consistent in most of the other areas I made some notes about too - so 40% :D
 
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