The latest in the range of graphics cards Radeon RX is significantly back on the PCI Express 4.0 x4 interface side.
While we have just learned what price will be considered – and probably not at all respected – for the release of the Radeon RX 6500 XT in France, Videocardz relay some additional information.
Interface limited to four PCIe 4.0 lanes
Taking details given by ASRock, but completely absent from AMD, Asus, Gigabyte or MSI sites, our colleagues indicate that the Radeon RX 6500 XT uses an interface limited to four PCI Express 4.0 lanes. A notable decline compared to the other Radeon RX 6000 but also compared to the Radeon RX 5500 which was in x8.
As explained by Videocardz, this limitation to PCIe 4.0 x4 will of course affect the bandwidth of the graphics card. It would be set at 8 Gb / s, which is the same as what can be found on a PCIe 3.0 x8 card or a PCIe 2.0 x16 card. Our colleagues take the opportunity to discuss other features that are missing.
Indeed, the Navi 24 GPU which equips the Radeon RX 6500 XT does not have the hardware encoding of H264 / HEVC or AV1 decoding. These are not necessarily very annoying points, as is the PCIe 4.0 x4 limitation: remember that the card is not designed for video games in addition to 1080p.
Is it really that important that the card has a PCI Express 4.0 x4 interface? This card was not meant for 1080p+ gaming, therefore it won’t work in most circumstances. It should, however, matter to gamers who are considering models like the Polaris RX570/580 or RDNA1 SKUs, which are similarly priced. Second-hand GPUs may be a preferable option in some circumstances.
It’s worth noting that, being a cheap card, the RX 6500XT may be used by certain gamers with older systems that don’t support the PCIe 4.0 standard. Because such systems will lack ResizableBar capability, the difference should be much more noticeable in this situation.