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SanDisk Ultra Plus 256GB - AS SSD

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, such as the OCZ Vertex 3.

Sequential Performance


AS SSD

Incompressible Data, Sequential Read Speeds

  • Samsung SSD 840 256GB
  • Samsung SSD 840 Pro 256GB
  • OCZ Vector 256GB
  • Crucial M4 512GB
  • Crucial M4 64GB
  • OCZ Vertex 3 256GB
  • Crucial M4 256GB
  • Samsung SSD 830 256GB
  • Samsung SSD 830 128GB
  • Samsung SSD 830 512GB
  • Samsung SSD 830 64GB
  • Crucial M4 128GB
  • OCZ Vertex 4 256GB
  • Corsair Neutron GTX 480GB
  • SanDisk Ultra Plus 256GB
  • Kingston HyperX 3K 120GB
  • OCZ Octane 512GB
    • 521
    • 521
    • 517
    • 516
    • 515
    • 513
    • 512
    • 512
    • 510
    • 510
    • 506
    • 505
    • 497
    • 493
    • 464
    • 455
    • 432
0
100
200
300
400
500
MB/sec, Higher Is Better
  • Average Read Speed

AS SSD

Incompressible Data, Sequential Write Speeds

  • Samsung SSD 840 Pro 256GB
  • OCZ Vector 256GB
  • OCZ Vertex 4 256GB
  • Corsair Neutron GTX 480GB
  • SanDisk Ultra Plus 256GB
  • Samsung SSD 830 256GB
  • Samsung SSD 830 512GB
  • Samsung SSD 830 128GB
  • OCZ Vertex 3 256GB
  • OCZ Octane 512GB
  • Crucial M4 256GB
  • Crucial M4 512GB
  • Samsung SSD 840 256GB
  • Crucial M4 128GB
  • Samsung SSD 830 64GB
  • Crucial M4 64GB
    • 498
    • 498
    • 461
    • 448
    • 418
    • 392
    • 388
    • 312
    • 293
    • 282
    • 278
    • 267
    • 249
    • 199
    • 160
    • 110
0
100
200
300
400
500
MB/sec, Higher Is Better
  • Average Write Speed

Random Performance


AS SSD

Incompressible Data, 4K Random Read, Single QD

  • Samsung SSD 840 Pro 256GB
  • SanDisk Ultra Plus 256GB
  • Crucial M4 64GB
  • Crucial M4 128GB
  • OCZ Vertex 4 256GB
  • Samsung SSD 840 256GB
  • Corsair Neutron GTX 480GB
  • OCZ Vector 256GB
  • OCZ Octane 512GB
  • Samsung SSD 830 128GB
  • Samsung SSD 830 64GB
  • Samsung SSD 830 256GB
  • Samsung SSD 830 512GB
  • Crucial M4 256GB
  • Crucial M4 512GB
  • OCZ Vertex 3 256GB
    • 31.33
    • 30.67
    • 27.68
    • 27.27
    • 27.18
    • 26.00
    • 24.89
    • 24.75
    • 23.92
    • 22.93
    • 22.82
    • 22.77
    • 22.71
    • 22.55
    • 22.26
    • 20.72
0
5
10
15
20
25
30
35
MB/sec, Higher Is Better
  • Average Random Read Speed

AS SSD

Incompressible Data, 4K Random Write, Single QD

  • SanDisk Ultra Plus 256GB
  • OCZ Vertex 3 256GB
  • OCZ Vertex 4 240GB
  • Crucial M4 128GB
  • Crucial M4 512GB
  • Crucial M4 256GB
  • OCZ Vector 256GB
  • Samsung SSD 830 128GB
  • Crucial M4 64GB
  • Samsung SSD 830 256GB
  • Samsung SSD 830 512GB
  • Samsung SSD 840 Pro 256GB
  • Samsung SSD 840 256GB
  • Samsung SSD 830 64GB
  • Corsair Neutron GTX 480GB
  • OCZ Octane 512GB
    • 92.24
    • 87.13
    • 86.97
    • 82.63
    • 81.81
    • 81.34
    • 79.68
    • 77.57
    • 77.44
    • 77.29
    • 76.80
    • 65.84
    • 64.91
    • 62.31
    • 58.50
    • 47.81
0
25
50
75
100
MB/sec, Higher Is Better
  • Average Random Write Speed

AS SSD

Incompressible Data, 4K Random Read, 64 QD

  • Samsung SSD 840 Pro 256GB
  • OCZ Vector 256GB
  • Corsair Neutron GTX 480GB
  • OCZ Vertex 4 240GB
  • Samsung SSD 840 256GB
  • SanDisk Ultra Plus 256GB
  • Crucial M4 128GB
  • Samsung SSD 830 128GB
  • Samsung SSD 830 512GB
  • Samsung SSD 830 256GB
  • Crucial M4 64GB
  • Samsung SSD 830 64GB
  • OCZ Vertex 3 256GB
  • Crucial M4 256GB
  • Crucial M4 512GB
  • OCZ Octane 512GB
    • 379
    • 368
    • 330
    • 325
    • 324
    • 288
    • 273
    • 272
    • 271
    • 265
    • 255
    • 229
    • 205
    • 152
    • 143
    • 122
0
100
200
300
400
MB/sec, Higher Is Better
  • Average Random Read Speed

AS SSD

Incompressible Data, 4K Random Write, 64 QD

  • OCZ Vector 256GB
  • Samsung SSD 840 Pro 256GB
  • OCZ Vertex 4 256GB
  • Corsair Neutron GTX 480GB
  • OCZ Vertex 3 240GB
  • Crucial M4 512GB
  • Crucial M4 256GB
  • Samsung SSD 840 256GB
  • Crucial M4 128GB
  • SanDisk Ultra Plus 256GB
  • Crucial M4 64GB
  • Samsung SSD 830 512GB
  • OCZ Octane 512GB
  • Samsung SSD 830 128GB
  • Samsung SSD 830 256GB
  • Samsung SSD 830 64GB
    • 329
    • 327
    • 309
    • 286
    • 238
    • 214
    • 212
    • 207
    • 160
    • 154
    • 98
    • 97
    • 86
    • 81
    • 70
    • 42
0
50
100
150
200
250
300
350
MB/sec, Higher Is Better
  • Average Random Write Speed

Read our performance analysis.