The Samsung 870 EVO 2TB is the objective winner of this comparison, securing more category wins across the evaluated specifications. Its most significant advantage is its storage capacity, which is 100% greater than that of the alternative. While the Western Digital WD Black SN8100 1TB demonstrates a substantial lead in sequential read speeds, outperforming the Samsung drive by 2561%, the overall balance of specifications favors the higher capacity offered by the Samsung 870 EVO 2TB.

Users who prioritize maximum storage space for large libraries or extensive file archiving should choose the Samsung 870 EVO 2TB for its superior capacity. Conversely, those who require the fastest possible sequential read performance for data-intensive tasks should select the Western Digital WD Black SN8100 1TB. The choice between these two components depends entirely on whether your specific workflow demands the expansive storage volume of the former or the extreme speed advantage of the latter.