Amazon.com: maxsun AMD Radeon RX 550 4GB Low Profile Small Form Factor Video Graphics Card for Gaming Computer PC GPU GDDR5 ITX SFF HDPC 128-Bit DirectX 12 PCI Express X16 3.0, HDMI,
x16 GPU in PCIe x1 slot: The caveats - The Silicon Underground
GPU running at x8 PCI-e instead of x16. GPU is seated in the 1st slot, tried seating in 2nd slot, then its running at 4x. Tried reinstalling drivers, tried adjusting some settings
Titan X Performance: PCI-E 3.0 x8 vs x16 | Puget Systems
USED Nvidia Quadro 6000 6GB GDDR5 384-bit PCI Express 2.0 x16 Full Height Video Card - Walmart.com