DiskBench
In the above graph, we are using the program DiskBench to perform a file copy of a 100GB file on each drive copied to a different folder on the same drive. This shows how fast each drive can copy a file from itself to itself, on the same drive. The time is in seconds, lower is fast. Here we can see the Samsung 860 EVO is the fastest taking 8.6 minutes to copy the 100GB file from itself to itself. The Mushkin Reactor is actually second taking 9.7 minutes. Finally, the TeamGroup T-Force Vulcan is last taking 10.1 minutes to copy.
We do have a theory about this, the size of the drives could be affecting the performance. We are after all comparing three different sized drives, a 500GB, a 1TB, and a 2TB. On the 1TB and 2TB drives, 100GB isn’t taking up much space and stays within the “beginning” of the drive. However, on the smaller 500GB TeamGroup T-Force Vulcan SSD 100GB is filling up a large portion of the drives total capacity and having to eat through all of that memory so that the DRAM buffer doesn’t really get to help much. It could be a possible explanation as to why it’s last, basically, it is filling up a lot more than the other drives, and as we all know filling up an SSD with large files can degrade overall performance.
In this DiskBench test, we are using a small 10GB file, and now you can see that the TeamGroup SSD takes 46 seconds and beats the Mushkin Reactor which is now the slowest one at 53 seconds. The SAMSUNG 860 EVO is very close, only 3 seconds faster at 43 seconds long.
With a 1GB file all the drives are close to each other, the Samsung 860 EVO is technically fastest at 2 seconds, but the TeamGroup SSD is only half a second slower here, and on par with the Mushkin Reactor.