Hello guys, native drivers are mad for my laptop: Downgrade to native centos kernel vmlinuz-3.10.0-327.18.2.el7.x86_64. fglrx glxgears around ~800 in 5 seconds my test with amdgpu kernel 4.6 (intel vs amdgpu): [andy at localhost ~]$ cat /proc/version Linux version 4.6.0-1.el7.centos.x86_64 (andy at localhost.localdomain) (gcc version 4.8.5 20150623 (Red Hat 4.8.5-4) (GCC) ) #1 SMP Thu May 19 18:48:16 CEST 2016 AMD ICELAND R5 M255 [andy at localhost ~]$ vblank_mode=0 DRI_PRIME=1 ./glxinfo.sh ATTENTION: default value of option vblank_mode overridden by environment. OpenGL vendor string: X.Org OpenGL renderer string: Gallium 0.4 on AMD ICELAND (DRM 3.1.0, LLVM 3.8.0) OpenGL core profile version string: 4.1 (Core Profile) Mesa 11.2.2 OpenGL core profile shading language version string: 4.10 OpenGL core profile context flags: (none) OpenGL core profile profile mask: core profile OpenGL core profile extensions: OpenGL version string: 3.0 Mesa 11.2.2 OpenGL shading language version string: 1.30 OpenGL context flags: (none) OpenGL extensions: OpenGL ES profile version string: OpenGL ES 3.0 Mesa 11.2.2 OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.00 OpenGL ES profile extensions: [andy at localhost ~]$ vblank_mode=0 DRI_PRIME=1 glxgears ATTENTION: default value of option vblank_mode overridden by environment. 10657 frames in 5.0 seconds = 2131.338 FPS 10748 frames in 5.0 seconds = 2149.570 FPS 10774 frames in 5.0 seconds = 2154.730 FPS 10774 frames in 5.0 seconds = 2154.669 FPS 10772 frames in 5.0 seconds = 2154.385 FPS Intel(R) HD Graphics 5500 (Broadwell GT2) [andy at localhost ~]$ vblank_mode=0 DRI_PRIME=0 ./glxinfo.sh ATTENTION: default value of option vblank_mode overridden by environment. ATTENTION: default value of option vblank_mode overridden by environment. OpenGL vendor string: Intel Open Source Technology Center OpenGL renderer string: Mesa DRI Intel(R) HD Graphics 5500 (Broadwell GT2) OpenGL core profile version string: 3.3 (Core Profile) Mesa 11.2.2 OpenGL core profile shading language version string: 3.30 OpenGL core profile context flags: (none) OpenGL core profile profile mask: core profile OpenGL core profile extensions: OpenGL version string: 3.0 Mesa 11.2.2 OpenGL shading language version string: 1.30 OpenGL context flags: (none) OpenGL extensions: OpenGL ES profile version string: OpenGL ES 3.1 Mesa 11.2.2 OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.10 OpenGL ES profile extensions [andy at localhost ~]$ vblank_mode=0 DRI_PRIME=0 glxgears ATTENTION: default value of option vblank_mode overridden by environment. ATTENTION: default value of option vblank_mode overridden by environment. 35639 frames in 5.0 seconds = 7127.733 FPS 36456 frames in 5.0 seconds = 7291.007 FPS 37647 frames in 5.0 seconds = 7529.270 FPS 35838 frames in 5.0 seconds = 7167.497 FPS 35601 frames in 5.0 seconds = 7120.093 FPS 35087 frames in 5.0 seconds = 7017.222 FPS Sincerely Andy