The Western Digital WD Black SN770 1TB and the Western Digital WD Black SN770 2TB are tied in their overall technical specifications. While both drives share identical performance characteristics across most metrics, they offer distinct advantages depending on your priorities. The 1TB model provides a significant benefit in terms of MSRP, which is 45% better than the larger version, while the 2TB model offers a 100% increase in total storage capacity.

Choose the Western Digital WD Black SN770 1TB if your primary goal is to minimize your initial investment while maintaining the core performance features of the series. Conversely, select the Western Digital WD Black SN770 2TB if your workflow requires double the storage space. Both options deliver the same underlying technical capabilities, so your decision should rest entirely on whether you value a lower entry cost or the need for expanded capacity.