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Valve just recently published a new Steam beta, and they have fixed up the Steam Overlay rendering issue that was causing it to bring down Vulkan performance.

I've run some fresh tests as requested on my Nvidia 980ti to show you the difference now with the Steam Overlay on and being used (FPS counter) vs before.

You can click the spoiler tags to expand the full output if that tickles your fancy.

Just Vulkan
image

All together
image
You can see Valve has made the Steam Overlay not impact performance really at all, so that's fantastic news. This is great, as when more games begin to use Vulkan there shouldn't be issues like this (hopefully).

The OpenGL performance has stayed the same as there wasn't really an issue with the Steam Overlay and OpenGL.

4K

Vulkan Average: 112.5 FPS (before it was 75.1 FPS)
Spoiler, click me
20:56:53 INF: Gfx API: Vulkan
20:56:53 INF: Duration: 60.0 seconds (6747 frames)
20:56:53 INF: Average: 112.5 FPS (113.8 w/o extremes)
20:56:53 INF: Extremes: 267.8 max, 20.9 min
20:56:53 INF: Sections: AI=6%, physics=2%, sound=1%, scene=70%, shadows=13%, misc=7%
20:56:53 INF: Highs: 612 in 4.3 seconds (141.5 FPS)
20:56:53 INF: Lows: 743 in 8.3 seconds (89.8 FPS)
20:56:53 INF: > 60 FPS: 100%

OpenGL Average: 91.8 FPS
Spoiler, click me
20:28:12 INF: Gfx API: OpenGL
20:28:12 INF: Duration: 59.3 seconds (5444 frames)
20:28:12 INF: Average: 91.8 FPS (100.7 w/o extremes)
20:28:12 INF: Extremes: 226.5 max, 4.5 min
20:28:12 INF: Sections: AI=5%, physics=2%, sound=1%, scene=70%, shadows=16%, misc=6%
20:28:12 INF: Lows: 352 in 8.8 seconds (40.2 FPS)
20:28:12 INF: 30-60 FPS: 7%
20:28:12 INF: > 60 FPS: 92%

1080p

Vulkan Average: 136.4 FPS (before it was 82.7 FPS)
Spoiler, click me
20:43:11 INF: Gfx API: Vulkan
20:43:11 INF: Duration: 60.0 seconds (8186 frames)
20:43:11 INF: Average: 136.4 FPS (138.9 w/o extremes)
20:43:11 INF: Extremes: 261.2 max, 29.5 min
20:43:11 INF: Sections: AI=7%, physics=2%, sound=1%, scene=66%, shadows=15%, misc=9%
20:43:11 INF: Highs: 942 in 5.6 seconds (167.2 FPS)
20:43:11 INF: Lows: 1216 in 11.0 seconds (111.0 FPS)
20:43:11 INF: > 60 FPS: 100%

OpenGL Average: 102.7 FPS
Spoiler, click me
20:32:07 INF: Gfx API: OpenGL
20:32:07 INF: Duration: 60.0 seconds (6163 frames)
20:32:07 INF: Average: 102.7 FPS (111.7 w/o extremes)
20:32:07 INF: Extremes: 229.7 max, 19.1 min
20:32:07 INF: Sections: AI=6%, physics=2%, sound=1%, scene=67%, shadows=18%, misc=6%
20:32:07 INF: Highs: 530 in 3.2 seconds (166.2 FPS)
20:32:07 INF: Lows: 936 in 14.8 seconds (63.4 FPS)
20:32:07 INF: 30-60 FPS: 5%
20:32:07 INF: > 60 FPS: 95%

When there are other games available that use Vulkan, I will most likely take a look at benchmarking them. Article taken from GamingOnLinux.com.
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The comments on this article are closed.
26 comments
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pete910 15 April 2016 at 8:26 pm UTC
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Serious improvement then !
ThePierrasse 15 April 2016 at 8:29 pm UTC
Wow Vulkan is just murdering OpenGL
Liam Dawe 15 April 2016 at 8:37 pm UTC
Added in a chart for them all together. Vulkan is clearly leading the way now for my testing, which is great news, and this isn't even final.
mirv 15 April 2016 at 8:39 pm UTC
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ThePierrasseWow Vulkan is just murdering OpenGL

While this is all nice for one particular game, and I'm sure there will be performance benefits across the board anyway, it's a bit early for such a generalised statement. Especially when the OpenGL version is of such importance. At least on my rig, Talos is using GL3.0, GLSL 130. Modern OpenGL (i.e GL4.5) would allow much greater performance improvements.

Again though, that they have something nicer with Vulkan is good. Just don't expect it everywhere.
Liam Dawe 15 April 2016 at 8:43 pm UTC
mirv
ThePierrasseWow Vulkan is just murdering OpenGL

While this is all nice for one particular game, and I'm sure there will be performance benefits across the board anyway, it's a bit early for such a generalised statement. Especially when the OpenGL version is of such importance. At least on my rig, Talos is using GL3.0, GLSL 130. Modern OpenGL (i.e GL4.5) would allow much greater performance improvements.

Again though, that they have something nicer with Vulkan is good. Just don't expect it everywhere.

While true, it depends on what they are doing. Using a higher OpenGL version wouldn't always result in higher performance.
z3ntu 15 April 2016 at 8:46 pm UTC
hmmm... Arch Linux, Kernel 4.5.0, Nvidia 364.16, GTX850M ...
22:43:59 INF:  - benchmark results -
22:43:59 INF:  
22:43:59 INF:    Gfx API: Vulkan
22:43:59 INF:   Duration: 60.0 seconds (3117 frames)
22:43:59 INF:    Average: 52.0 FPS (52.8 w/o extremes)
22:43:59 INF:   Extremes: 266.2 max, 15.0 min
22:43:59 INF:   Sections: AI=4%, physics=1%, sound=1%, scene=83%, shadows=8%, misc=3%
22:43:59 INF:      Highs: 110 in 1.4 seconds (80.3 FPS)
22:43:59 INF:       Lows: 260 in 6.6 seconds (39.3 FPS)
22:43:59 INF:  30-60 FPS: 89%
22:43:59 INF:   > 60 FPS: 10%

22:41:41 INF:  - benchmark results -
22:41:41 INF:  
22:41:41 INF:    Gfx API: OpenGL
22:41:41 INF:   Duration: 60.0 seconds (11336 frames)
22:41:41 INF:    Average: 189.0 FPS (204.4 w/o extremes)
22:41:41 INF:   Extremes: 354.0 max, 12.7 min
22:41:41 INF:   Sections: AI=14%, physics=3%, sound=2%, scene=72%, shadows=0%, misc=9%
22:41:41 INF:      Highs: 51 in 0.1 seconds (344.3 FPS)
22:41:41 INF:       Lows: 856 in 8.8 seconds (97.1 FPS)
22:41:41 INF:   > 60 FPS: 100%



Last edited by z3ntu at 15 April 2016 at 8:47 pm UTC
mirv 15 April 2016 at 8:52 pm UTC
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liamdawe
mirv
ThePierrasseWow Vulkan is just murdering OpenGL

While this is all nice for one particular game, and I'm sure there will be performance benefits across the board anyway, it's a bit early for such a generalised statement. Especially when the OpenGL version is of such importance. At least on my rig, Talos is using GL3.0, GLSL 130. Modern OpenGL (i.e GL4.5) would allow much greater performance improvements.

Again though, that they have something nicer with Vulkan is good. Just don't expect it everywhere.

While true, it depends on what they are doing. Using a higher OpenGL version wouldn't always result in higher performance.

Indeed - but I did want to point out that it's not necessarily Vulkan being more efficient here compared to OpenGL in general, or that Vulkan will always be more efficient. It's more that Croteam could (quickly, I guess) adapt their existing engine and get performance improvements. Whether or not they could have done the same by moving to GL4.5 is an open question - and probably moot, seeing as there's no real incentive for them to do so.

-- edit: I'm also not sure about the shader situation. I'd be very curious to know if they've used a HLSL -> SPIR-V, or HLSL -> GLSL -> SPIR-V approach (the latter would be ugly, to say the least).


Last edited by mirv at 15 April 2016 at 9:02 pm UTC
Cestarian 15 April 2016 at 10:25 pm UTC
Simply amazing, can't believe they got this far this fast. Would like to see some vulkan windows vs vulkan linux though (and maybe some vulkan vs dx11)


Last edited by Cestarian at 15 April 2016 at 10:26 pm UTC
luis 15 April 2016 at 10:34 pm UTC
Liam, thanks for your work. Amazing benchmark, also the graphs are looking more professional and easy to read. Keep up!

Now, it would be nice to have a post on how to install this new driver. Is there a ppa? Should it be used together with bumblebee? This kind of stuff.

Best,
ElectricPrism 16 April 2016 at 4:47 am UTC
If we could keep crap out of the punch bowl that would be great.

Grats to Valve on the very needed fix.


Last edited by ElectricPrism at 16 April 2016 at 4:47 am UTC
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