Yes, those are impressive reads for a HDD but there sure is a disparity with the writes. And it is expensive when you get the size you need. https://www.anandtech.com/show/12748/the-intel-optane-memory-m10-64gb-review-optane-caching-refreshed/8 https://www.pcgamer.com/intel-optane-memory-everything-you-need-to-know/
16GB Optane is what I have that works in conjunction with a 1TB 7200RPM hard drive. These 16gb Optane chips go for $13 on eBay. Intel had a great idea but NVME drives are down in price so you get an NVME for your boot drive. Or buy a computer or a laptop that has an NVME boot drive and conventional hard drive for storage.
NVME is where it is at. I’ll bet HP is not even making Optane computers any more. Dell and Lenovo did.