Meh. Doesn't really beat the competition just offers another choice.
The performance numbers in the GN video just look like they took a 580/590 and slapped a 5500 sticker on it for roughly the same price. The real "choice" might be finding Polaris cards in the closeout bin sometime next year?
I guess the main feature is that it knocks about 80-100W off of the power consumption vs the Rx 580/590, with the sacrifice of a bit lower performance? I'm just having a hard time overcoming my initial expectation that they'd make the 5500 XT at least 10% faster than the 590.
To be entirely honest, the 5500XT was slotted to fight the 1650 non-super model, of which it handily annihilates for the price of that previous competitor. Now...? Yeah it's kinda pointless. Nvidia countered hardcore with the 1650 Super, though they kinda dug themselves a weird hole what with all the "super" cards now.