RADV Vulkan Gaming Getting Closer To RadeonSI OpenGL Performance

[phoronix]

Phoronix: RADV Vulkan Gaming Getting Closer To RadeonSI OpenGL Performance

With the Mesa-based RADV Vulkan driver having just landed a significant performance optimization you may be wondering whether RADV Vulkan now leads to faster gaming frame-rates than using the mature RadeonSI OpenGL driver... I was curious so I ran some fresh benchmarks using the newest Mesa Git code.

http://www.phoronix.com/vr.php?view=25754

[paupav]

i dont know what to think about these tests since on my radeon 7770 (i know prehistoric GPU) i get very smooth gameplay in dota 2 on radv whereas on radeonsi it is barely playable..

[cRaZy-bisCuiT]

Michael, it's holiday! Why don't you visit friends or family? We're busy with our beloved anyways. (;

[marek]

i dont know what to think about these tests since on my radeon 7770 (i know prehistoric GPU) i get very smooth gameplay in dota 2 on radv whereas on radeonsi it is barely playable..

The CPU might play a greater role here. I recommend at least quad-core CPUs for radeonsi.

[gurv]

The CPU might play a greater role here. I recommend at least quad-core CPUs for radeonsi.

Exactly what I have observed, radeonsi seems to really benefit from 4+ cores.
Vulkan will shine a lot more with weak cpus.
In GPU bound scenarios, I guess both games' and drivers' vulkan codepaths are still not as refined as opengl ones.

[jake2029]

i dont know what to think about these tests since on my radeon 7770 (i know prehistoric GPU) i get very smooth gameplay in dota 2 on radv whereas on radeonsi it is barely playable..

I have the same GPU. Try AMDGPU + MESA (Vulkan compiling flags required) and running DOTA2 with '-vulkan' as a Steam launch parameter.

[pal666]

the whole reason for vulkan was to help in cpu-bound scenarios
and the only two tests which seem to be cpu-bound here are dota 1080p and one of mad maxes
and it didn't help in those tests

[pal666]

on my radeon 7770 (i know prehistoric GPU)

probably paired with prehistoric cpu

[paupav]

The CPU might play a greater role here. I recommend at least quad-core CPUs for radeonsi.

I have quad core CPU (2.4 GHz hah)

[bridgman]

the whole reason for vulkan was to help in cpu-bound scenarios
and the only two tests which seem to be cpu-bound here are dota 1080p and one of mad maxes
and it didn't help in those tests

The Vulkan API *allows* apps to be written in a way that reduces single-threaded-ness but doesn't *require* it.

It does generally reduce CPU overhead, but even if the Vulkan app has half the CPU load of a comparable OpenGL app it is still likely to end up CPU-bound if the bulk of the work is single threaded.