Crucial P5Plus 1T
- Basic Information
|Model Name||Firmware Version|
|980Pro||Samsung SSD 980 PRO 1TB||5B2QGXA7|
We still check their IO latency first.
Max Write Latency
|10 IOPS (ms)||4K 1QD (ms)||512B 1QD 10p filled (ms)||512B 1QD 50% filled (ms)||4K mix RW 90% filled (ms)|
The latency is well controlled.
|10% filled (MB/s)||90% filled (MB/s)||50% trimmed (MB/s)|
All drives have good and similar sequential write performance. The performance all degrade when drives are full filled, and recover after trim operations.
|10% filled (K IOPS)||90% filled (K IOPS)||50% trimmed (K IOPS)|
Except for read and write, Trim is also a common command in nowadays’ OS. We test its performance by trim half LBA space.
|IOPS (K)||Max Latency (ms)||Average Latency (ms)||performance before trim (MB/s)||performance after trim (MB/s)|
If we use SSD in laptop, the power consumption is also a key consideration. We list TMT1/2 setting below.
|TMT1 (℃)||TMT2 (℃)|
P5Plus has the lowest TMT1, which may be easiler to enter thermal throttling.
Low Power State
|PS4 measured power (mW)||PS4 exit duration (us)||PS3 measured power (mW)||PS3 exit duration (us)|
The low power data is collected after Format operation and keep idle for 2 minutes. Suppose, there should be no background jos in this condition.
Active Power Consumption
In sequential write, the temperature and performance keep stable. But in sequential read test, the temperature drops a lot sometimes. Maybe it is due to the temperature, though its SMART temperature is lower than TMT1 at that time.
SLC cache retirement
980Pro use only 10% capacity as SLC cache. When the drive is aged, it still has SLC cache as the FOB drive. So the performance keeps high in the whole life cycle.