The Samsung 990 Pro 4TB with Heatsink is the objective winner of this comparison, securing five out of seven total specifications. Its most significant advantage is its storage capacity, which is 300% greater than that of the Samsung 970 EVO Plus 1TB. While the latter remains competitive in terms of MSRP, offering an 82% better value in that specific category, the former dominates the technical landscape by providing substantially more space for data and files.

Users who require massive storage for extensive libraries or professional workloads should choose the Samsung 990 Pro 4TB with Heatsink to take advantage of its superior capacity. Conversely, the Samsung 970 EVO Plus 1TB is the logical selection for budget-conscious buyers who prioritize a lower MSRP over the need for high-volume storage. Selecting between these two drives depends entirely on whether your primary requirement is maximizing available space or minimizing your initial financial outlay.