The Seagate FireCuda 540 2TB wins in 5 out of 7 comparable specs, with 1 tie. Its biggest advantage is Endurance (TBW) (233% better).
WD Black SN850X 1TB wins in 1 spec (MSRP: 69% better).
Recommendation
Choose FireCuda 540 2TB if you want the best overall performance — especially endurance (tbw).
Choose WD Black SN850X 1TB if msrp matters more to you.
