TechPowerUp made a quick comparison with the Radeon RX 5700 XT:
The benchmark was run on Windows OS using OpenGL API. It only ran the "Manhattan" high-level test, which yielded a result of 5430 frames in total or about 87.6 frames per second. When compared to something like RX 5700 XT, which scored 8905 frames in total and 143.6 FPS, RX 5500 clearly seems positioned at the lower end of NAVI GPU stack.
[GFXBench] 3D Graphics Performance of AMD Radeon RX 5500 https://t.co/WIQvX9bzf3
— ?????????@Komachi (@KOMACHI_ENSAKA) 23 september 2019