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What kind of performance should I except with RX 550 on Ubuntu 16.04 or 18.04?

Question asked by tawai on Aug 23, 2018

Machine specs:

Laptop: Lenovo Thinkpad E580

Memory: 8GB

SSD: Samsung 960 nvme

GPU: Intel UHD 620 and AMD RX 550.


These are the distros I have tried:

Ubuntu 18.04.1 (Gnome)

KDE Neon (Ubuntu 16.04)

Kubuntu 18.04.1


On all of the distros I have tried the built in amdgpu driver, I have installed the 18.30 amd driver both all-open and pro editions. (Pro gets me a black screen in KDE).

I get about a bit under half the FPS as I get with the intel card.



AMD card:

ari@laptop:~$ DRI_PRIME=1 vblank_mode=0 glxgears

3708 frames in 5.0 seconds = 741.567 FPS

3869 frames in 5.0 seconds = 773.752 FPS


Intel Card:

user@laptop:~$ DRI_PRIME=0 vblank_mode=0 glxgears

9599 frames in 5.0 seconds = 1918.674 FPS

8751 frames in 5.0 seconds = 1750.149 FPS



What could be wrong?