Samsung’s PRO lineup of consumer SSDs is geared toward high-performance applications such as gaming, workstation use, and heavy computing. The 990 PRO 2TB is Samsung’s flagship PCIe 4.0 SSD, hitting the upper limits of the Gen4 interface with sequential read speeds up to 7,450 MB/s and writes up to 6,900 MB/s. Random I/O performance reaches 1.4M IOPS read and 1.55M IOPS write, with a 1,200 TBW endurance rating for the 2TB capacity. The M.2 2280 size makes the SSD compatible with most current desktop motherboards, gaming laptops, and the PlayStation 5’s expansion slot.
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The 990 PRO’s PCIe 4.0 interface puts it near the top of the consumer SSD performance ladder. PCIe 4.0 supports a theoretical maximum of 8,000 MB/s, and the 990 PRO reaches 7,450 MB/s on sequential reads, using nearly all of the available bandwidth on the interface. Sequential write speeds top out at 6,900 MB/s, with random I/O hitting 1.4M IOPS for reads and 1.55M for writes. Those figures represent a 55% improvement over Samsung’s previous-generation 980 PRO, particularly in random access performance critical for game loading and application launch times.
