The Samsung 990 Pro 4TB is the objective winner of this comparison, securing victory in four out of seven measured specifications. Its most significant advantage over the competition is its storage capacity, which is 300% greater than that of the alternative. While the Sabrent Rocket 4 Plus 1TB holds a 71% advantage in MSRP, the superior total volume offered by the Samsung 990 Pro 4TB makes it the more capable hardware choice for high-density data requirements.

Users who prioritize maximum storage space for large libraries or professional workflows should select the Samsung 990 Pro 4TB to take advantage of its significantly higher capacity. Conversely, the Sabrent Rocket 4 Plus 1TB is the appropriate choice for budget-conscious builders who prefer a lower MSRP and do not require the expanded storage footprint provided by the larger drive. Each component serves a distinct need based on these specific capacity and cost trade-offs.