REAL WORLD FILE TRANSFER
We also wanted to see how performance was in a real-world use when transferring large files to the SSD. For this test, we are going to simply stress write performance by transferring over a 30GB folder of movies off of a 512GB Samsung 950 Pro to the test SSDs and time how long it takes. Once complete we can calculate the average speed.
During this test the Samsung 960 EVO absolutely killed it…and got killed by it. The 1TB model’s performance matched the 2TB 960 Pro’s performance and is tied for the #1 position. The 250GB on the other hand was beat out by Samsung’s SATA based 850 Pro. The 13GB TurboWrite buffer couldn’t keep up with the 30GB of writes thrown at it and the average sank down to 479MB/s, placing it dead last.
For our power consumption testing, we have the drive connected to the system as a secondary drive. To record the wattage, we are now utilizing a Quarch Technology Programmable Power Module. It allows us to accurately measure power consumption over time and is flexible enough to allow us to test any SSD that comes our way.
Our power analysis may change as time goes on, but for now we are looking at just a few metrics with the main goal of measuring our results against the manufacturer’s ratings. Because most consumer systems are at idle for about 80% of the time, idle power consumption is an important measure to look at when understanding the efficiency of a drive.
On the bright side, the 960 EVO’s idle power consumption with active-state power management (ASPM) disabled is the lowest we have tested yet.
Finally, we wanted to post up a graph of the power efficiency of the SSDs in comparison. We are looking at MB/s per Watt in this graph. The higher the result, the better.
During this test, we saw a max of 4.9W out of the 250GB model and 6.1W out of the 1TB model. Average wattage was 3.3W and 4.2W for each capacity respectively. As you can see from the graph above, the 1TB 960 EVO ranks second overall, just behind the 960 Pro. Additionally, the 250GB model was able to beat out the Intel 750 and HyperX Predator in this metric thanks to its lower power consumption overall.