Sorry just got home from work, and nope they were wrong......sorry, excellent for RAM overclocks too, the GPU Slot is PCI 5.0 along with the front nvme slot and the rear nvme slot is PCI 4.0.
This is with GPU and both nvme slots populated
I love this board to be honest, if my Gene ever died I would buy one of these for myself.
Just for further info, Ryzen actually has 28 PCI 5.0 lanes but 4 are for the downstream to the chipset, so leaves 24 available to the user, generally on X670E and B650E these are used for 2 x nvme drives and a x16 GPU, or 8x8x GPU slots, everything else generally runs off the chipset (some boards lane share like the ASUS B650E-E)
X870 has completely changed this.....in my opinion for the worse as the USB4 needs 4 lanes which they stole from the CPU instead of the chipset, so now you still have 28 lanes, 4 for the downstream to the chipset, 4 for the USB4, leaving 20 available to the user, 16 for the GPU and 4 for the first nvme slot, any futher nvme's start lane sharing and cutting the GPU slots down to x8 or x8x4 if you have 2 GPU slots, the 3rd GPU x16 slot (if you have one) generally runs at PCI 4.0 x4 off the chipset but can also be lost depending on which M.2 slots you are using.
