The Seagate Barracuda 4TB and the Western Digital WD Blue SN5000 4TB result in an objective tie across the evaluated specifications. While both drives offer distinct technical strengths, the most impactful advantage for the Seagate Barracuda 4TB is its DRAM cache, which is 100% better than the alternative. Conversely, the Western Digital WD Blue SN5000 4TB holds a significant lead in speed, boasting a sequential read capability that is 2795% better than its competitor.

Choose the Seagate Barracuda 4TB if your primary requirement is the inclusion of a DRAM cache for your storage needs. If your priority is maximizing sequential read performance, the Western Digital WD Blue SN5000 4TB is the superior selection. Each drive offers a specific technical edge, so your final decision should depend on whether you value the cache capacity of the Seagate unit or the massive sequential read advantage provided by the Western Digital model.