Seagate 600 Pro SSD Review (400GB) – Better Warranty, 28% OP and Power Loss Protection


ATTO Disk Benchmark is perhaps one of the oldest benchmarks going and is definitely the main staple for manufacturer performance specifications. ATTO uses RAW or compressible data and, for our benchmarks, we use a set length of 256mb and test both the read and write performance of various transfer sizes ranging from 0.5 to 8192kb. Manufacturers prefer this method of testing as it deals with raw (compressible) data rather than random (includes incompressible data) which, although more realistic, results in lower performance results.

Seagate 600 pro 400GB SSD ATTO

The initial ATTO result for the 600 Pro is much like that of the Seagate 600 480GB SSD we reviewed initially and so it should be; the only difference between the two is the amount of over provisioning (which speaks to endurance) and most probable custom firmware differences for this SSD.  These still better the initial specifications of 520MB/s read and 450MB/s write which is a great start.


Crystal Disk Benchmark is used to measure read and write performance through sampling of raw (0/1 Fill/compressible) or random data which is, for the most part, incompressible. In the Seagate 600 Pro SSD, performance results are very similar whether we test with compressible or incompressible data and, for this reason, results are displayed utilizing incompressible data.

Seagate 600 pro 400GB SSD Crystal Disk Mark

Crystal DiskMark is typically a bit lower than ATTO, however, in this case, we are seeing the result using highly incompressible data which is excellent.


Up until recently, AS SSD was the only benchmark created specifically for SSD testing and it uses incompressible data. AS SSD, for the most part, gives us the ‘worst case scenario’ in SSD transfer speeds because of its use of incompressible data and many enthusiasts like to AS SSD for their needs. Transfer speeds are displayed on the left with IOPS results on the right.

Seagate 600 pro 400GB SSD AS SSD BenchSeagate 600 Pro 400GB SSD AS SSD IOPSOnce again, the Seagate 600 Series hits the 1000 plateau in AS SSD Total Scoring and it’s high IOPS and quick access times are indicative of the reasoning.  Our AS SSD Copy Benchmark also did very well with the 600 Pro returning three SATA 3 speeds in file transfer and each transfer being completed in four seconds or less.

Seagate 600 Pro 400GB SSD AS SSD Copy Bench

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