Samsung SSD 840 EVO mSATA 1TB Review

December 9, 2013 | 10:04

Tags: #1tb-ssd #msata #samsung-electronics #small-form-factor #ssd #ssd-840-evo

Companies: #samsung

AS SSD Benchmark Results

Website: AS SSD

AS SSD is a freeware benchmarking tool designed just for SSDs, performing a battery of sequential read and write tests, as well as random read and write tests and sequential access tests over a 3GB portion of the drive. As Windows 7's caching technology makes using real world tests such as FC-Test almost impossible, this is the next best test for judging sequential read and write speeds. It also produces accurate access times, and is wonderfully easy to use.

AS SSD's benchmark uses data that is predominantly incompressible, which negates much of SandForce's DuraWrite compression technology. This means that it can be seen as a worst case scenario for drives that use compression.

Sequential Performance


AS SSD

Incompressible Data, Sequential Read Speeds

  • Samsung SSD 840 EVO 1TB
  • Toshiba THNSNH256GMCT mSATA 256GB
  • Samsung SSD 840 EVO mSATA 1TB
  • Plextor M5M mSATA 128GB
  • Crucial M500 mSATA 240GB
    • 538
    • 518
    • 518
    • 514
    • 501
0
100
200
300
400
500
600
MB/sec, Higher Is Better
  • Average Read Speed

AS SSD

Incompressible Data, Sequential Write Speeds

  • Samsung SSD 840 EVO mSATA 1TB
  • Samsung SSD 840 EVO 1TB
  • Toshiba THNSNH256GMCT mSATA 256GB
  • Plextor M5M mSATA 128GB
  • Crucial M500 mSATA 240GB
    • 503
    • 502
    • 477
    • 306
    • 266
0
100
200
300
400
500
MB/sec, Higher Is Better
  • Average Read Speed

Random Performance


AS SSD

Incompressible Data, 4K Random Read, Single QD

  • Samsung SSD 840 EVO mSATA 1TB
  • Samsung SSD 840 EVO 1TB
  • Plextor M5M mSATA 128GB
  • Crucial M500 mSATA 240GB
  • Toshiba THNSNH256GMCT mSATA 256GB
    • 40.74
    • 40.62
    • 31.12
    • 26.52
    • 21.43
0
10
20
30
40
MB/sec, Higher Is Better
  • Average Read Speed

AS SSD

Incompressible Data, 4K Random Write, Single QD

  • Crucial M500 mSATA 240GB
  • Samsung SSD 840 EVO mSATA 1TB
  • Samsung SSD 840 EVO 1TB
  • Toshiba THNSNH256GMCT mSATA 256GB
  • Plextor M5M mSATA 128GB
    • 108.28
    • 104.26
    • 102.56
    • 94.90
    • 76.73
0
25
50
75
100
MB/sec, Higher Is Better
  • Average Read Speed

AS SSD

Incompressible Data, 4K Random Read, 64 QD

  • Samsung SSD 840 EVO 1TB
  • Samsung SSD 840 EVO mSATA 1TB
  • Toshiba THNSNH256GMCT mSATA 256GB
  • Crucial M500 mSATA 240GB
  • Plextor M5M mSATA 128GB
    • 384.21
    • 382.76
    • 359.04
    • 314.93
    • 299.16
0
100
200
300
400
MB/sec, Higher Is Better
  • Average Read Speed

AS SSD

Incompressible Data, 4K Random Write, 64 QD

  • Samsung SSD 840 EVO mSATA 1TB
  • Samsung SSD 840 EVO 1TB
  • Plextor M5M mSATA 128GB
  • Crucial M500 mSATA 240GB
  • Toshiba THNSNH256GMCT mSATA 256GB
    • 324.14
    • 323.60
    • 265.50
    • 227.25
    • 180.72
0
50
100
150
200
250
300
350
MB/sec, Higher Is Better
  • Average Read Speed

Read our performance analysis.
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