While the bandwidth provided by PCIe 3.0 is found to be sufficient for most GPUs with adequate VRAM, the 4GB Radeon RX 5500 XT is found to be struggling possibly due to its PCIe x8 limitation.
Rx 5500 xt RSS
AMD has launched a new budget-oriented GPU aimed at improving the experience for gamers at 1080p resolution. The Radeon RX 5500 XT is available from partners today starting at $169.
The rumors of the Radeon RX 5500 XT and the GeForce GTX 1660/1650 Super graphics cards get confirmation thanks to an EEC certification. The Radeon card is reportedly being announced in a week.