The Western Digital WD Black SN8100 4TB wins in 6 out of 7 comparable specs. Its biggest advantage is Sequential Read (189% better).
WD Black SN770 2TB wins in 1 spec (MSRP: 82% better).
Recommendation
Choose WD Black SN8100 4TB if you want the best overall performance — especially sequential read.
Choose WD Black SN770 2TB if msrp matters more to you.
