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 option for general storage requirements.

Users who prioritize maximum file storage space should choose the Samsung 870 EVO 2TB, as it offers double the capacity of the competitor. Conversely, those who require the fastest possible sequential read performance for their specific workload should select the Western Digital WD Black SN8100 1TB. The choice between these two components depends entirely on whether your primary need is for larger total volume or significantly higher data retrieval speeds.