Having low power consumption is important to many enthusiasts and we were shocked to learn that the Samsung SSD 850 EVO 2TB uses 38% more power during write operations than the Samsung SSD 850 PRO 2TB drive. Here are the power consumption numbers given by Samsung for both the 850 PRO and 850 EVO 2TB drives.
We figured we’d give it a quick look to see what is going on with the two drives on our own power testing gear. We measured the power at idle and load power states using both sequential and random read/write test data.
When it comes to an idle power state we found the 0.04-0.06 Watts of power on our Intel X99 desktop platform, which is some of the best idle power numbers we have ever seen. When it comes to peak power we found the SSD 850 PRO 2TB drive hit 3.24 Watts during sequential write operations and just 3.10W during sequential read operations. The Samsung SSD 850 EVO 2TB drive hit 3.85 Watts during sequential write operations and 3.23W during sequential read operations. On the write tests we found a ~19% power difference between the two dries on sequential operations and a ~44% different on random writes. The Samsung 850 EVO used more power during both sequential and random reads as well, but not by nearly so much.