AMD Radeon RX 6600 XT PCI-Express Scaling
Citiraj:
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On average, at 1080p Full HD, we measured a 2% performance drop going from PCIe 4.0 x8 to PCIe 3.0 x8 (half the bandwidth). Even if we assume a 2% difference—same as between PCIe 4.0 and PCIe 3.0 despite diminishing returns from higher bandwidth, the performance hit is pretty much negligible. This definitely justifies what AMD did, as long as it brought them sufficient cost savings. The second big question for this article is what happens to performance when you run RX 6600 XT on a system that only supports PCIe Gen 3 only, and the answer here is quite similar to that of the previous question: on average, you're looking at a 1–2% performance loss, much more in some exotic titles.
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Izvor: TechPowerUp
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