The Western Digital WD Blue SN5000 2TB wins in 4 out of 6 comparable specs, with 1 tie. Its biggest advantage is Sequential Write (842% better).
WD Blue SA510 1TB wins in 1 spec (MSRP: 35% better).
Recommendation
Choose WD Blue SN5000 2TB if you want the best overall performance — especially sequential write.
Choose WD Blue SA510 1TB if msrp matters more to you.
