3DMark Fire Strike is a showcase DirectX 11 benchmark designed for today’s high-performance gaming PCs. It is our [FutureMark’s] most ambitious and technical benchmark ever, featuring real-time graphics rendered with detail and complexity far beyond what is found in other benchmarks and games today.
Early indications are mixed when looking at 3DMark. The Fire Strike score seems to put the 8GB 5500 XT just below the GTX 1660, but in Time Spy it's scoring less than GTX 1650 SUPER.