Radeon RX 550 Linux Benchmarks: $89 Polaris GPU On Open-Source
On a performance-per-Watt basis, the RX 460/480/580 were ahead of the RX 550, which was only on par with older GPUs like the R7 260X and R9 285.
The GTX 1050 Pascal efficiency was much greater than Polaris Evolved.
The thermal performance of this Gigabyte Radeon RX 550 graphics card is at least good.
Similar power efficiency and GPU thermal results with Dota 2.