![]() In the Gaming workload, the SSD 850 EVO drives do very well again, and the 120GB and 250GB models actually do best with over 153MB/sec each. Here, the 500GB and 250GB models improve by a healthy 11 and 16 percent respectively. The SSD 850 EVO manages between 125MB/sec and 128MB/sec in the PCMark 7 Starting Applications test, with all four just managing to trump the MX100, though not by anything meaningful. ![]() Thankfully, this type of workload is highly unlikely to be used with these drives, so it's nothing to be concerned about. Meanwhile, the 250GB falls to 272MB/sec, while the 120GB manages just 143MB/sec. However, at the even more strenuous QD64 test in AS SSD, only the 500GB and 1TB drives can maintain their high levels of performance, with speeds of around 330MB/sec. In CDM (QD32), all drives are roughly the same and very fast, as the specs table predicted they would be, and the 250GB SSD 850 EVO improves by 19 percent over the SSD 840 EVO, which is again as Samsung said. Write speeds here tell an interesting story. As such, the drives are substantially faster than the MX100, though these workloads are not very relevant for users in this bracket. This is most likely due to differences between the MEX controller that the 1TB drive uses and the MGX controller that the other three use.Īt higher queue depths (QD64 in AS SSD, QD32 in CDM), the SSD 850 EVO drives are effectively equal when it comes to read speeds, with speeds for all four that are right near the top of the charts where the SSD 850 PRO and Plextor M6 PRO reside. It's not by much, but it's a recognisable pattern. ![]() Interesting, the 1TB model is a little slow for both read or writes. Write speeds are not chart topping – that privelege belongs to drives that use OCZ's Barefoot 3 controller – but they're not far off. The read speeds put the four SSD 850 EVO drives at the top of both the AS SSD and CrystalDiskMark charts, in which they take the top spot from the SSD 840 EVO. Random performance at QD1 is improved across the board. It's particularly pleasing to see a 120GB SSD performing so fast, though of course if you fill the TurboWrite buffer in a single command this won't be the case. Because we could.Sequential performance is equally high across all four capacities of the SSD 850 EVO, with not a single read or write result below 500MB/sec and never a difference of more than 8MB/sec between any two of the drives. Click to enlarge - We made an SSD throne.
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