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PCIe 5.0 at 14,700 MB/s: what that actually means
The 9100 PRO runs PCIe 5.0 x4, which doubles the interface bandwidth available to PCIe Gen 4 drives. Sequential reads hit 14,700 MB/s and writes reach 13,400 MB/s, putting it at roughly twice the throughput of the Samsung 990 PRO that has been the category benchmark for two years. For video editors moving large raw files, AI workloads that stream training data off disk, and anyone doing sustained large-file transfers between storage devices, that gap translates into real time saved rather than just benchmark bragging rights. Random performance reaches 1,850K read IOPS and 2,600K write IOPS, which governs how the drive feels during everyday computing and game loading where sequential speed matters less than response to small, scattered requests.
The 5nm controller improves power efficiency by up to 49% over the 990 PRO while delivering that performance uplift, which keeps thermals manageable in compact builds where a Gen 5 drive’s heat output has been a concern with earlier designs. Samsung manufactures its own NAND, DRAM, and controller in-house, which gives the 9100 PRO the same end-to-end tuning advantage that made the 990 PRO the default recommendation in its generation.
