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RX6600 and 6600XT are limited to 8 PCIe lanes not 16. Should specs description show this? Fixed — Micro Center
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PCIe 4.0 and PCIe 3.0 - Difference between x8 and x16 with the fastest cards - Where does the bottleneck begin? | igor'sLAB
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PCI Express 3.0 (PCIe 3.0) x1 vs x4 vs x8 vs x16 in 14 Games (Ultra setting) i7 4790k + GTX 1080 - YouTube
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PCI Express Bandwidth Test: PCIe 4.0 vs. PCIe 3.0 Gaming Performance & Limited VRAM Memory Buffers | TechSpot
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