The Western Digital WD Black SN8100 2TB is the objective winner of this comparison, securing more category victories than its counterpart. Its most significant technical advantage is its sequential read speed, which is 189% faster than that of the Western Digital WD Black SN770 2TB. While the latter holds its own in two categories, the superior read performance of the former establishes it as the more capable hardware option across the majority of the measured specifications.

Users prioritizing maximum data transfer speeds should select the Western Digital WD Black SN8100 2TB to take advantage of its substantial lead in sequential read performance. Conversely, those who are strictly budget-conscious should opt for the Western Digital WD Black SN770 2TB, as it offers a 64% better MSRP. Choosing between these two drives depends entirely on whether your primary requirement is high-speed data access or a more favorable initial purchase cost.