The Samsung 9100 Pro 1TB wins in 3 out of 7 comparable specs, with 3 ties. Its biggest advantage is Sequential Write (111% better).
WD Black SN850X 1TB wins in 1 spec (MSRP: 50% better).
Recommendation
Choose 9100 Pro 1TB if you want the best overall performance — especially sequential write.
Choose WD Black SN850X 1TB if msrp matters more to you.
