The Samsung 990 Pro 4TB is the objective winner of this comparison, securing three out of five total specification categories. Its most significant advantage over the Seagate Barracuda 2TB is its sequential read speed, which is 3821% better. While the Seagate Barracuda 2TB holds a single specification lead, the Samsung 990 Pro 4TB dominates the majority of the technical metrics provided, establishing itself as the superior option for raw performance.

Users prioritizing high-speed data access should choose the Samsung 990 Pro 4TB for its massive sequential read advantage. Conversely, those focused on budget constraints should select the Seagate Barracuda 2TB, as it maintains an 84% better MSRP. Your final decision depends on whether you value the significant performance gains offered by the Samsung drive or the cost-effective pricing provided by the Seagate alternative.