![]() ![]() The power and latency numbers are often very conservative estimates, but they are what the OS uses to determine which idle states to use and how long to wait before dropping to a deeper idle state. Note that the above tables reflect only the information provided by the drive to the OS. Power state transition latencies for the 980 PRO have also been adjusted slightly, but the overall picture is still a promise of very quick state changes. ![]() The active state power levels have been tweaked and the highest power state can now reach 8.49W: definitely high for a M.2 drive, but not as problematic as the 10.73W declared by the Phison E16-based Seagate FireCuda 520. The set of power management features supported by the 980 PRO is the same as what the 970 generation offered. Non-Operational Power State Permissive Mode Number of non-operational (idle) power states Number of operational (active) power states NVMe Power and Thermal Management Features They may also be used in locations with high ambient temperatures and poor cooling, such as tucked under a GPU on a desktop motherboard, or in a poorly-ventilated notebook. M.2 SSDs can concentrate a lot of power in a very small space. Especially under light use, the power efficiency of a SSD is determined mostly be how well it can save power when idle.įor many NVMe SSDs, the closely related matter of thermal management can also be important. Real-world client storage workloads leave SSDs idle most of the time, so the active power measurements presented earlier in this review only account for a small part of what determines a drive's suitability for battery-powered use. ![]()
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