The Samsung 870 EVO 1TB is the objective winner of this comparison, securing more total spec victories than its competitor. Its most significant advantage is a sequential read speed that is 187% better than the alternative. This performance lead makes it the superior choice for tasks that prioritize rapid data access and responsiveness. By outperforming the Seagate IronWolf 4TB in the majority of measured categories, it establishes itself as the more capable drive for standard computing needs.

Users who prioritize high-speed data retrieval should select the Samsung 870 EVO 1TB for their primary storage requirements. Conversely, those who require massive amounts of space should choose the Seagate IronWolf 4TB, which offers a capacity that is 300% better than the Samsung drive. The decision between these two components rests entirely on whether your specific workflow demands the superior read performance of the former or the significantly larger storage volume provided by the latter.