The Samsung 9100 Pro 1TB is the objective winner of this comparison, securing victories in four out of seven evaluated specifications. Its most significant technical advantage is its sequential write performance, which is 102% better than that of the alternative. By outperforming in a majority of the measured categories, this drive establishes itself as the superior option for users prioritizing raw speed and technical efficiency in their storage solution.

Choose the Samsung 9100 Pro 1TB if your primary requirement is high-speed sequential write performance for demanding tasks. Conversely, select the Western Digital WD Black SN850X 4TB if your priority is storage volume, as it offers a 300% advantage in total capacity. While the former excels in performance metrics, the latter is the clear choice for users who need to store large amounts of data on a single drive.