The Ryzen 7 5800X3D is marginally faster and sometimes even slower than the 5800X when it comes to synthetic benchmarks like GeekBench, CPU-Z and Cinebench, but the processor really shines in games where it manages to outperform even the top-of-the-line Alder Lake desktop models from Intel.
https://www.notebookcheck.net/First-test-results-for-the-AMD-Ryzen-7-5800X3D-are-in-easily-beats-Intel-s-i9-12900K-S-in-Shadow-of-the-Tomb-Raider-but-proves-quite-underwhelming-in-synthetic-benchmarks.612675.0.html