![]() Knowing well the ultimate performance potential of NAND-based SSDs even when they first showed up, it was clear to the industry that a new bus and protocol would eventually be needed. But, as the first SSDs were relatively slow (and bulky), it proved far more convenient to use the existing SATA storage infrastructure. But for your operating system, programs, and oft-used data, you want an NVMe SSD if your system supports it, or a SATA SSD if it can’t. Hard drives still offer tremendous bang for the buck in terms of capacity and are wonderful for less-used data. Some drives in each category might do better, some will do worse. Shorter bars are better, but this is an overall average. HD = 2-5 millisecond seek, SATA SSD = 0.2 millisecond seek, NVMe SSD = 0.02 millisecond seek. The CPU and GPU development curve pales in comparison to that of storage over the last 10 years. HDD = 200MBps, SATA SSD = 550MBps, NVMe SSD = 3GBps. Not that you need sustained throughput like this very often, but NVMe makes short work of transferring files of any size. ![]() The approximate performance ceilings for the three mainstream storage technologies as things now stand are: IDG That’s on top of the four- to five-fold improvement in throughput and ten-fold improvement in seek times that was already provided by SATA SSDs when compared to hard drives. ![]() Not only that, but it locates them 10 times as fast (seek). ![]() That’s because the NVMe SSD inside the latest MacBook Pro reads and writes data literally four times faster than the SATA SSDs found in previous generations. ![]()
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