Samsung 850 EVO Series SSD Review – 120GB and 500GB


ATTO & AS-SSD Benchmarks

ATTO v2.47

ATTO is one of the oldest drive benchmarks still being used today and is still very relevant in the SSD world. ATTO measures transfers across a specific volume length. It measures raw transfer rates for both reads and writes and places the data into graphs that can be very easily interpreted. The test was run with the default runs of 0.5KB through 8192KB transfer sizes with the total length being 256MB.

ATTO – Intel Z97 Platform:

ATTO - Samsung 850 EVO 120GB ATTO - Samsung 850 EVO 500GB

Benchmark Results: Very similar results between the 120GB and 500GB drives and as strong as any other drive on our comparison.

ATTO Grid - Samsung 850 EVO

AS-SSD (1.7.4739.38088) Benchmark – Intel Z97 Platform:

We have been running the AS-SSD Benchmark app for over some time now and found that it gives a broad result set. The programmer has worked very hard on this software and continues to make updates often so if you use it, show him some love and send him a donation. There are now three tests that are found within the tool and we’ll show the results from two of them.

AS-SSD - Samsung 850 EVO 120GB AS-SSD - Samsung 850 EVO 500GB

Benchmark Results: Again, the performance is very similar between the two capacities with the biggest disparity coming on the 4K-64 Thrd writes. It’s good to see the performance not drop off considerably as some drives do.

AS-SSD Grid - Samsung 850 EVO


AS-SSD Compression Chart - Samsung 850 EVO 120GB


AS-SSD Compression Chart - Samsung 850 EVO 500GB

Benchmark Results: Obviously, the compressibility of the data has no impact on the performance of the drive with the graph lines having zero slope.