The Western Digital WD Black SN8100 2TB is the objective winner of this comparison, securing three out of five total specification categories. Its most significant advantage over the Seagate Barracuda 1TB is its sequential read speed, which outperforms the competitor by 7742%. While the Seagate Barracuda 1TB maintains a lead in MSRP with an 86% advantage, the superior performance metrics of the Western Digital WD Black SN8100 2TB make it the more capable hardware option overall.

Users prioritizing maximum performance and higher storage capacity should select the Western Digital WD Black SN8100 2TB for their system. Conversely, the Seagate Barracuda 1TB is the appropriate choice for budget-conscious buyers who value a lower MSRP over the significant speed advantages offered by the alternative. Choosing between these two components depends entirely on whether your primary requirement is high-speed data access or minimizing your initial financial investment.