The Samsung 990 EVO Plus 4TB and the Seagate Barracuda 4TB result in an objective tie across the evaluated specifications. While both drives offer identical storage capacity, they cater to fundamentally different technical priorities. The Samsung 990 EVO Plus 4TB holds a significant lead in performance potential, offering a sequential read speed that is 3716% better than its competitor. Conversely, the Seagate Barracuda 4TB provides a distinct advantage in architecture, featuring a DRAM cache that is 100% better.

Users prioritizing raw data transfer speeds should select the Samsung 990 EVO Plus 4TB to leverage its superior sequential read capabilities. This drive is the logical choice for tasks requiring rapid file access. Alternatively, those who value the stability and performance benefits of integrated memory should choose the Seagate Barracuda 4TB. Its inclusion of a DRAM cache makes it the preferred option for users who require that specific architectural advantage for their storage operations.