The Samsung 990 Pro 4TB is the objective winner of this comparison, securing victory in four out of six evaluated specifications. Its most significant technical advantage is its sequential read speed, which outperforms the alternative by 1230%. While the Samsung 870 EVO 500GB remains competitive in specific areas, the 990 Pro 4TB provides a substantial leap in raw data throughput that defines its superior performance profile across the majority of the tested metrics.

Users prioritizing maximum data transfer speeds and high-capacity storage should choose the Samsung 990 Pro 4TB for their high-performance computing needs. Conversely, the Samsung 870 EVO 500GB is the better option for budget-conscious buyers, as it holds an 88% advantage in MSRP. Selecting between these two drives depends entirely on whether your primary requirement is the extreme sequential read capability of the former or the cost-effective pricing of the latter.