Radeon RX 6500 XT is the cheapest desktop video card of the current generation. But the $ 200 price tag comes with a 64-bit bus and 4GB of memory. And one more thing, as it turned out.
It turned out that the new AMD product has a PCIe 4.0 x4 interface, that is, four times narrower bus than older models. True, the same RX 6600 is also cut in this parameter, but up to PCIe 4.0 x8.
Thus, the bus bandwidth in the case of the RX 6500 XT corresponds to PCIe 3.0 x8 or PCIe 2.0 x16. And that’s 8 GB / s. Given the relatively low performance of the adapter by modern standards and the focus on Full HD, such limitations are unlikely to be a problem, but you need to wait for tests.
But what can definitely become a problem for a number of buyers is the lack of hardware AV1 decoding and H.264 encoding in 4K.