SPEC, File Copy, Torture Test, Temp
SPEC takes a lot longer to complete than the benchmarks on the previous page. We'd describe WD Red SN700 as a premium PCIe 3.0 x4 solution.
Hitting mostly middle-of-the-pack numbers, we feel confident in saying you can use it if contemplating a high-end consumer PC. Don't let the Red designation obscure the fact this is a good all-round drive.
As we have the WD Blue SN550 1TB to hand in the labs, we also ran a test by copying a 900GB folder of large files (66, to be exact) from the host PC's 2TB drive to either the empty Blue SN550 and Red SN700. The purpose of doing so was to examine how long it took for the cache to become swamped and writing to be pushed over exclusively to the TLC NAND.
Blue SN550 degrades sustained performance after only 35GB, which is stingy, whilst Red SN700, of the same capacity, keeps going until around 110GB before write speed halves. All in all, filling the entire SN700 1TB drive translates to an average write speed of just under 850MB/s.
