Please read the article as there is a paragraph dedicated to those numbers.

Also, any idea if this will out pressure on pricing? Right now PCIe 5 drives cost almost 2x per GB compared to the PCIe 4 SSDs.

My guess is that E28 SSDs will start appearing within 2 months. The identified problem is global with all 200 series motherboards and Intel, ASUS, ASRock and other motherboard manufacturers have identified and spoken to this. Before our article we tested alongside Tweaktown to verify our discovery as Jon is a very close friend of mine. The most effective way to gain accurate readings is using an M.2 AIC adapter directly to the CPU PCIe lanes. We do this as does Tweaktown. It is easy to identify websites testing using the M.2 slots by their sub=par results with respect to the Intel chipset. They are much the same as the article. Thanks for commenting

As for testing with Z890, try to use motherboard with M2 connected directly to graphics PCIE. Mobos like ASUS ROG Strix Z890-E Gaming WIFI or GIGABYTE Z890 AORUS Master have such m2 slots. Additional card used as bridge, may add latencies lowering results. Tweak Town use such motherboard, with great results.