NVIDIA RTX 5090 PCIe 5.0 vs. 4.0 vs. 3.0 x16 Scaling Benchmarks

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This benchmark compares PCIe generation differences on the NVIDIA RTX 5090 GPU. We're testing PCIe 5.0 x16 vs. PCIe 4.0 x16 vs. PCIe 3.0 x16. This also helps serve as an effective PCIe 5.0 x8 vs. PCIe 5.0 x16 benchmark, as PCIe 5.0 x8 is represented by PCIe 4.0 x16. The testing is done on our AMD Ryzen 7 9800X3D CPU test bench, enabling the RTX 5090 for PCIe difference testing. Overall, we did not find a significant difference between the PCIe generations 3 through 5 when tested on x16 lanes each.

Test bench and methodology: https://gamersnexus.net/features/livi...

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TIMESTAMPS

00:00 - 1 TO 4 PERCENT
02:58 - PCIe Generation Speed Differences
05:42 - PCIe Compatibility Basics Explained
08:25 - Test Methodology
09:52 - Dying Light 2 4K, 1440p
10:38 - Black Myth Wukong 4K, 1440p, 1080p
11:55 - Ray Tracing Black Myth 4K, 1080p
12:25 - Resident Evil 4 4K, 1440p, 1080p
13:05 - F1 24 4K
13:23 - Conclusion

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Steve Burke: Host, Testing, Writing
Mike Gaglione: Testing
Jeremy Clayton: Testing
Tim Phetdara: Editing