NVIDIA RTX 3080 PCIe 3.0 vs. PCIe 4.0 x16 Benchmarks (& Intel vs. AMD for 3080 Discussion) - YouTube
hardware - What's the bandwidth and form factor for PCIe x1 x4 x8 and x16? - Server Fault
What are the differences between PCIE 4.0 and PCIE 3.0? - Quora
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Which GPU gets bottlenecked by PCI-E 3.0 x8 vs x16 ? Is any of them even bottlenecked ? : r/buildapc
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PCIe 3.0 x8 vs. x16: Does It Impact GPU Performance? | GamersNexus - Gaming PC Builds & Hardware Benchmarks