Linux 4.20 Allows Overclockers To Increase The Radeon TDP Power Limit
The AMDGPU Linux kernel driver for a while has now offered command-line-driven OverDrive overclocking for recent generations of Radeon GPUs. This has allowed manipulating the core and memory clock speeds as well as tweaking the voltage but has not supported increasing the TDP limit of the graphics card: that's in place with Linux 4.20..