Subject

    Computer Science

    Topic

    Computer Hardware

    What is the main advantage of NVMe over PCIe versus SATA SSDs?

    ক)
    Lower connector cost only
    খ)
    File system built into hardware
    গ)
    Massively parallel queues and higher bandwidth
    ঘ)
    Uses DRAM instead of NAND

    Explanation

    NVMe leverages PCIe lanes to deliver multi-GB/s throughput and low latency. It supports many submission/completion queues with thousands of commands each. SATA caps at ~600 MB/s (6 Gb/s) with AHCI’s single queue. NVMe is optimized for modern SSD parallelism.

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