ASUS ThunderboltEX 4 with Intel Thunderbolt 4 JHL 8540 Controller, 2 USB Type-C ports, up to 40Gb/s Bi-directional Bandwidth and Incorporates DisplayPort 1.4 support, up to 100W Quick Charge - Newegg.com
NVIDIA RTX 3080 PCIe 3.0 vs. PCIe 4.0 x16 Benchmarks (& Intel vs. AMD for 3080 Discussion) - YouTube