The Samsung 990 EVO Plus 2TB is the objective winner of this comparison, securing victories in five out of seven measured specifications. Its most significant advantage over the competition is its storage capacity, which is 100% greater than that of the alternative. By offering double the space, this drive provides a substantial increase in total data volume for users who require extensive room for their files and applications.

Choose the Samsung 990 EVO Plus 2TB if your primary requirement is maximum storage capacity for large-scale data needs. Conversely, select the Western Digital WD Black SN770 1TB if your priority is a lower MSRP, as this drive holds a 68% advantage in that specific category. These distinct benefits allow you to align your purchase decision with either a need for expanded space or a focus on the initial acquisition cost.