PCIe 3.0 x8 vs. x16: Does It Impact GPU Performance? - YouTube
Why is my RX580 seen as PCI x8 1.1 when it's supposed to be PCI x16 3.0? It's placed in the PCI Express x16 slot and there are no other slots occupied.
MSI RTX 4090 Gaming X Trio does not run PCIe x16 (keeps running x8) - Graphics Cards - Linus Tech Tips
NVIDIA EVGA GeForce GTX 460 SE 1GB GDDR5 GPU PCIe x16 1.1 DVI-I MINI HDMI | eBay
SOLVED] - GPU-Z says PCIe x4 when it should be x16. | Tom's Hardware Forum
graphics card - New GTX 970 running on PCI-E 1.1 x16 instead of 2.0 - Super User
HP 516913-001 ATI HD3470 (RV620) PCI-e x16 256MB graphics card - Has one DP 1.1a connector, one dual-link DVI connector, and includes bracket