The Crucial T705 4TB is the objective winner of this comparison, securing victory in five out of seven evaluated specifications. Its most significant advantage is its storage capacity, which is 300% greater than that of the alternative. By offering substantially more room for data, this drive establishes itself as the superior option for users requiring high-volume storage solutions compared to the Western Digital WD Black SN850X 1TB.

Users who prioritize maximum storage space for large libraries or professional workloads should select the Crucial T705 4TB for its superior capacity. Conversely, those who are strictly constrained by the initial manufacturer's suggested retail price should opt for the Western Digital WD Black SN850X 1TB, as it holds an 87% advantage in that specific category. Choose based on whether your primary requirement is expansive data volume or a more accessible entry cost.