The Samsung 990 EVO Plus 2TB is the objective winner of this comparison, securing more spec victories than its counterpart. While both drives share several identical technical specifications, the 2TB model provides the most significant advantage in total storage capacity, which is 100% greater than the 1TB version. This substantial increase in space is the primary differentiator between the two storage options, making the larger drive the superior choice for users requiring maximum data density.

Users who prioritize budget efficiency should select the Samsung 990 EVO Plus 1TB, as it offers a 35% advantage in MSRP compared to the larger model. Conversely, the 2TB variant is the ideal choice for individuals who need to store extensive libraries of files and require the highest capacity available. By choosing based on these specific advantages, buyers can align their purchase with either a lower entry cost or a doubled storage footprint.