The Samsung 9100 Pro 1TB is the objective winner of this comparison, securing more category victories across the evaluated specifications. Its most significant advantage is a sequential write speed that outperforms the competition by 21 percent. While the Western Digital WD Black SN8100 1TB maintains a marginal lead in sequential read performance, the Samsung 9100 Pro 1TB provides a more substantial lead in its primary area of strength, making it the superior choice based on the total spec-win count.

Users who prioritize write-heavy workloads should select the Samsung 9100 Pro 1TB to leverage its 21 percent advantage in sequential write speeds. Conversely, the Western Digital WD Black SN8100 1TB is a suitable alternative for those who specifically require the 1 percent lead in sequential read performance. Since both drives tied in the majority of the evaluated categories, the decision rests on whether your specific usage patterns favor the write-focused performance of the Samsung or the read-focused edge of the Western Digital.