The P5 regulates its average and peak power consumption well, but the drives' somewhat weak file copy performance hurts its power efficiency score. Bear in mind that results will vary based on the workload and ambient air temperature. data and an IR thermometer to see when (or if) thermal throttling kicks in and how it impacts performance. We also monitor the temperature of the drive via the S.M.A.R.T. A drive might consume more power during any given workload, but accomplishing a task faster allows the drive to drop into an idle state faster, which ultimately saves power. Average workload power consumption and max consumption are two other aspects of power consumption, but performance-per-watt is more important. Some SSDs can consume watts of power at idle while better-suited ones sip just milliwatts. Idle power consumption is an important aspect to consider, especially if you're looking for a laptop upgrade. We use the Quarch HD Programmable Power Module to gain a deeper understanding of power characteristics. After an additional minute of idle time, the SLC cache grew to 500GB. This means that while the initial fill shows that the SLC cache is only about 200GB, we measured 350GB after 30 seconds of idle time. In contrast, other SSDs will immediately recover all of the cache as fast as possible, and at a fairly steady rate.Ĭrucial, however, can recoup its entire cache immediately after a write transfer stops, and the cache also expands when it detects a large sequential workload. Some SSDs recover only 4-6GB of SLC cache within a few moments, and then take hours to recover the rest of the cache capacity. Like the 1TB model, the 2TB Crucial P5 has rather unusual write performance characteristics, largely because it comes with one of the most interesting caching mechanisms we've seen. The Crucial P5 wrote roughly 200GB of data at 3GBps before degrading to a speed of 1,100 MBps. We also monitor cache recovery via multiple idle rounds. We use iometer to hammer the SSD with sequential writes for 15 minutes to measure both the size of the write cache and performance after the cache is saturated. Sustained write speeds can suffer tremendously once the workload spills outside of the cache and into the "native" TLC or QLC flash. Most SSDs implement a write cache, which is a fast area of (usually) pseudo-SLC programmed flash that absorbs incoming data. Official write specifications are only part of the performance picture. Sustained Write Performance and Cache Recovery The P5’s random read performance is fast at QD1, while its performance in random write tests is much slower than the competition. The P5’s performance in random workloads is the polar opposite of the trends we see in our sequential tests. Crucial’s multi-core design seems to be a liability here because while the SSD can deliver fast sequential performance at larger block sizes, it suffers at smaller block sizes - especially with write workloads.Īfter intensifying the workload, the P5’s sequential performance peaks at 3.5/3.3 GBps read/write. The P5’s overall write performance looks good, but it lagged behind even the WD Black SN750 during read workloads. The Crucial P5 Plus meets the performance and form factor requirements for Sony PS5™ when used with a heatsink.We tested Crucial’s P5 at a QD (queue depth) of 1, representing most day to day file access at various block sizes.Micron is not responsible for the user damaging the PS5 or other material. Inappropriate use of a heat sink, or lack of heat-dissipation mechanism, may cause problems with the P5 Plus and/or PlayStation 5. Sony recommends that NVMe M.2 drives installed in the PlayStation 5 should be used with a heat-dissipation mechanism, such as a heat sink or heat transfer sheet.Calculated by comparing P5 Plus’s sequential reads of 6600MB/s to the previous generation’s (P5) speed of 3400MB/s, or to the SATA’s (BX500) speed of 540MB/s.Warranty valid for five years from the original date of purchase or before writing the maximum total bytes written (TBW) as published in the product datasheet and as measured in the product’s SMART data, whichever comes first.Not all capacities available at initial launch. Some of the storage capacity is used for formatting and other purposes and is not available for data storage. When installed in a Gen3 system, typical read/write speeds are 3300/2700MB/s. System variations will affect measured results. For performance measurement purposes, the SSD may be restored to FOB state using the secure erase command. Typical I/O performance numbers as measured using CrystalDiskMark® with a queue depth of 128 and write cache enabled.
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