SCORE
PRICE 1TB, £140 (£168 inc VAT) from pcpro.link/324sn8
READ SPEED 5,746MB/SEC
WRITE SPEED 5,085MB/SEC
If you’re upgrading or building a PC, the WD Black SN850 makes a superb system drive. It takes advantage of the huge bandwidth of the PCI Express Gen4 bus to offer performance rival SSDs can’t match: in our tests it achieved a sequential read speed of almost 6GB/sec, and topped 5GB/sec when writing.
Multi-threaded performance is excellent too. In AS SSD’s 64-thread random-access test, the SN850 kept up a read speed of 2,906MB/sec and a write rate of 2,805MB/sec. In both of the PCMark storage benchmarks it achieved solid first-place rankings, scoring 3,502 in the system disk test and 5,984 as a data disk.
Despite these amazing figures, the SN850 is pretty affordable. True, the…
