Samsung SSD 850 PRO 256GB Review

Written by Matthew Lambert

July 1, 2014 | 06:33

Tags: #3d-v-nand #850-pro #best-ssd #fastest-ssd #nand #ssd #ssd-840-evo #ssd-850-pro

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 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 (Rapid Mode)
  • Samsung SSD 850 Pro 256GB
  • Samsung SSD 840 Pro 256GB
  • Intel SSD 730 240GB
  • OCZ Vector 150 240GB
  • Crucial M550 512GB
  • Crucial MX100 512GB
  • Toshiba HG6 SSD 512GB
  • Samsung SSD 840 Evo 250GB
  • Corsair Neutron GTX 240GB
  • Samsung SSD 840 Evo 500GB
  • OCZ Vertex 450 256GB
  • SanDisk Ultra Plus 256GB
    • 962
    • 530
    • 525
    • 524
    • 521
    • 520
    • 520
    • 519
    • 516
    • 515
    • 515
    • 511
    • 498
0
250
500
750
1000
MB/sec, Higher Is Better
  • Average Read Speed

AS SSD

Incompressible Data, Sequential Write Speeds

  • Samsung SSD 840 Evo 1TB (Rapid Mode)
  • Samsung SSD 840 Evo 250GB
  • Samsung SSD 840 Pro 256GB
  • Samsung SSD 840 Evo 500GB
  • OCZ Vertex 450 256GB
  • Samsung SSD 850 Pro 256GB
  • OCZ Vector 150 240GB
  • Toshiba HG6 SSD 512GB
  • Crucial MX100 512GB
  • Crucial M550 512GB
  • Corsair Neutron GTX 240GB
  • SanDisk Ultra Plus 256GB
  • Intel SSD 730 240GB
    • 1076
    • 520
    • 505
    • 504
    • 502
    • 502
    • 497
    • 491
    • 485
    • 482
    • 440
    • 440
    • 276
0
250
500
750
1000
MB/sec, Higher Is Better
  • Average Write Speed

Random Performance


AS SSD

Incompressible Data, 4K Random Read, Single QD

  • Samsung SSD 840 Evo 500GB
  • Samsung SSD 840 Evo 1TB (Rapid Mode)
  • Samsung SSD 840 Evo 250GB
  • Samsung SSD 850 Pro 256GB
  • Samsung SSD 840 Pro 256GB
  • Intel SSD 730 240GB
  • SanDisk Ultra Plus 256GB
  • Crucial MX100 512GB
  • Crucial M550 512GB
  • Corsair Neutron GTX 240GB
  • OCZ Vector 150 240GB
  • Toshiba HG6 SSD 512GB
  • OCZ Vertex 450 256GB
    • 40.94
    • 40.38
    • 39.21
    • 36.88
    • 35.77
    • 35.08
    • 33.77
    • 30.76
    • 30.31
    • 28.66
    • 24.73
    • 23.11
    • 23.08
0
10
20
30
40
MB/sec, Higher Is Better
  • Average Random Read Speed

AS SSD

Incompressible Data, 4K Random Write, Single QD

  • Samsung SSD 840 Evo 1TB (Rapid Mode)
  • OCZ Vector 150 240GB
  • OCZ Vertex 450 256GB
  • Crucial MX100 512GB
  • Crucial M550 512GB
  • Samsung SSD 850 Pro 256GB
  • Samsung SSD 840 Pro 256GB
  • Samsung SSD 840 Evo 500GB
  • Samsung SSD 840 Evo 250GB
  • Intel SSD 730 240GB
  • Toshiba HG6 SSD 512GB
  • Corsair Neutron GTX 240GB
  • SanDisk Ultra Plus 256GB
    • 254.00
    • 114.92
    • 112.38
    • 109.96
    • 109.78
    • 107.74
    • 104.96
    • 104.46
    • 104.28
    • 102.77
    • 98.79
    • 95.68
    • 94.40
0
50
100
150
200
250
MB/sec, Higher Is Better
  • Average Random Write Speed

AS SSD

Incompressible Data, 4K Random Read, 64 QD

  • Samsung SSD 840 Evo 1TB (Rapid Mode)
  • Samsung SSD 850 Pro 256GB
  • Crucial M550 512GB
  • Samsung SSD 840 Pro 256GB
  • Toshiba HG6 SSD 512GB
  • OCZ Vector 150 240GB
  • Intel SSD 730 240GB
  • Samsung SSD 840 Evo 500GB
  • Corsair Neutron GTX 240GB
  • OCZ Vertex 450 256GB
  • Crucial MX100 512GB
  • SanDisk Ultra Plus 256GB
  • Samsung SSD 840 Evo 250GB
    • 458
    • 384
    • 382
    • 370
    • 362
    • 349
    • 348
    • 345
    • 342
    • 336
    • 322
    • 309
    • 226
0
100
200
300
400
500
MB/sec, Higher Is Better
  • Average Random Read Speed

AS SSD

Incompressible Data, 4K Random Write, 64 QD

  • Samsung SSD 840 Evo 1TB Rapid Mode
  • OCZ Vector 150 240GB
  • OCZ Vertex 450 256GB
  • Samsung SSD 840 Evo 500GB
  • Samsung SSD 850 Pro 256GB
  • Crucial MX100 512GB
  • Samsung SSD 840 Pro 256GB
  • Crucial M550 512GB
  • Corsair Neutron GTX 240GB
  • Intel SSD 730 240GB
  • Samsung SSD 840 Evo 250GB
  • Toshiba HG6 SSD 512GB
  • SanDisk Ultra Plus 256GB
    • 879
    • 334
    • 331
    • 328
    • 328
    • 325
    • 324
    • 324
    • 298
    • 246
    • 244
    • 232
    • 166
0
100
200
300
400
500
600
700
800
900
MB/sec, Higher Is Better
  • Average Random Write Speed

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