The Western Digital WD Black SN8100 4TB is the objective winner of this comparison, securing five out of seven total specification categories. Its most impactful advantage is its sequential read speed, which outperforms the Samsung 970 EVO Plus 1TB by 326 percent. While the latter component remains competitive in one specific area, the former demonstrates a clear technical superiority across the majority of the measured performance metrics provided for this evaluation.

Users prioritizing high-speed data access and maximum storage capacity should select the Western Digital WD Black SN8100 4TB for their system. Conversely, the Samsung 970 EVO Plus 1TB is the better choice for budget-conscious buyers, as it holds an 87 percent advantage in MSRP. Choosing between these two drives depends entirely on whether your primary requirement is the superior sequential read performance of the former or the cost efficiency of the latter.