[optimus] intel graphic performs faster than nvidia

Ask Fedora
1

hey folks.

nvidia PowerMizer profile is already set to Maximum Performance.

glxspheres result
nvidia

[mn@localhost bin]$ __NV_PRIME_RENDER_OFFLOAD=1 __GLX_VENDOR_LIBRARY_NAME=nvidia vblank_mode=0 ./glxspheres64
Polygons in scene: 62464 (61 spheres * 1024 polys/spheres)
GLX FB config ID of window: 0x134 (8/8/8/0)
Visual ID of window: 0x2c3
Context is Direct
OpenGL Renderer: GeForce MX150/PCIe/SSE2
61.169557 frames/sec - 68.265225 Mpixels/sec
60.012409 frames/sec - 66.973849 Mpixels/sec

glxspheres result
intel

[mn@localhost bin]$ vblank_mode=0 ./glxspheres64
Polygons in scene: 62464 (61 spheres * 1024 polys/spheres)
ATTENTION: default value of option vblank_mode overridden by environment.
GLX FB config ID of window: 0x250 (8/8/8/0)
Visual ID of window: 0x2c7
Context is Direct
OpenGL Renderer: Mesa DRI Intel(R) UHD Graphics 620 (Kabylake GT2)
168.975927 frames/sec - 188.577134 Mpixels/sec
102.478463 frames/sec - 114.365964 Mpixels/sec

glxgears result
nvidia

[mn@localhost ~]$ __NV_PRIME_RENDER_OFFLOAD=1 __GLX_VENDOR_LIBRARY_NAME=nvidia vblank_mode=0 glxgears
Running synchronized to the vertical refresh. The framerate should be
approximately the same as the monitor refresh rate.
304 frames in 5.0 seconds = 60.717 FPS
301 frames in 5.0 seconds = 60.059 FPS

glxgears result
intel

mn@localhost ~]$ vblank_mode=0 glxgears
ATTENTION: default value of option vblank_mode overridden by environment.
40030 frames in 5.0 seconds = 8005.974 FPS
38780 frames in 5.0 seconds = 7755.880 FPS

any idea guys?

2

as explained here

It's the same for me, but in games it is totally different, I have a much better performance with the Nvidia card. You shouldn't use glxspheres/glxgears to mesure performance.

i’d leave it here anyway

3

UPDATE:
here’s the result with unigine valley:

NVIDIA

Unigine Valley Benchmark 1.0

FPS: 14.6
Score: 611
Min FPS: 9.1
Max FPS: 25.8

System

Platform: Linux 5.5.5-200.fc31.x86_64 x86_64
CPU model: Intel(R) Core™ i7-8550U CPU @ 1.80GHz (1991MHz) x8
GPU model: Unknown GPU (256MB) x1

Settings

Render: OpenGL
Mode: 1920x1080 8xAA fullscreen
Preset Extreme HD

INTEL

Unigine Valley Benchmark 1.0

FPS: 3.5
Score: 146
Min FPS: 2.2
Max FPS: 6.0

System

Platform: Linux 5.5.5-200.fc31.x86_64 x86_64
CPU model: Intel(R) Core™ i7-8550U CPU @ 1.80GHz (1991MHz) x8
GPU model: Unknown GPU (256MB) x1

Settings

Render: OpenGL
Mode: 1920x1080 8xAA fullscreen
Preset Extreme HD

conclusion:
when it comes to benchmarking your optimus setup, do not go near any of glxgears or glxspheres

4

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