The Western Digital WD Black SN8100 4TB is the objective winner of this comparison, securing five out of seven total specification categories. Its most significant advantage over the competition is its sequential write speed, which outperforms the alternative by 175 percent. While the Samsung 980 Pro 2TB remains a viable option, it only leads in one category, primarily benefiting from a 64 percent better MSRP compared to the higher-capacity drive.

Users who prioritize maximum storage capacity and superior sequential write performance should choose the Western Digital WD Black SN8100 4TB for their system. Conversely, the Samsung 980 Pro 2TB is the better selection for budget-conscious builders who prefer a lower MSRP over the increased speed and capacity offered by the alternative. Your final decision should depend on whether your primary requirement is high-speed data writing or minimizing your initial hardware investment.