Crucial M4 256GB Review

Written by Harry Butler

May 16, 2011 | 11:03

Tags: #m4 #ssd

Companies: #crucial

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, as well as random read and write tests and sequential access times over a 3GB portion of the drive. As Windows 7's caching technology makes using more real world based tests like FC-Test almost impossible, this is the next best thing for judging sequential read and write speeds, as well as producing accurate access times and being 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 Vertex 3.

Sequential Speeds


AS SSD

Incompressible Data, Sequential Read Speeds

  • OCZ Vertex 3 240GB (Beta SandForce 2281)
  • Crucial M4 256GB (Marvell)
  • Crucial C300 256GB (Marvell)
  • Intel X-25M 160GB
  • OCZ Vertex 120GB (Indilinx Barefoot)
  • G.SKill Phoenix 100GB (SandForce 1222)
    • 506
    • 426
    • 328
    • 257
    • 225
    • 209
0
100
200
300
400
500
MB/sec, Higher Is Better
  • Average Write

AS SSD

Incompressible Data, Sequential Write Speeds

  • Crucial M4 256GB (Marvell)
  • OCZ Vertex 3 240GB (SandForce 2281)
  • Crucial C300 256GB (Marvell)
  • OCZ Vertex 120GB (Indilinx Barefoot)
  • G.SKill Phoenix 100GB (SandForce 1222)
  • Intel X-25M 160GB
    • 287
    • 284
    • 217
    • 165
    • 129
    • 102
0
50
100
150
200
250
300
MB/sec, Higher Is Better
  • Average Write

Random Performance


AS SSD

Incompressible Data, 4K Random Read Speed (single thread)

  • Crucial C300 256GB (Marvell)
  • OCZ Vertex 120GB (Indilinx Barefoot)
  • Crucial M4 256GB
  • OCZ Vertex 3 240GB (SandForce 2281)
  • G.SKill Phoenix 100GB (SandForce 1222)
  • Intel X-25M 160GB
    • 29
    • 24
    • 22
    • 21
    • 19
    • 18
0
5
10
15
20
25
30
MB/sec, Higher Is Better
  • Average Random Read

AS SSD

Incompressible Data, 4K Random Write Speed (single thread)

  • Crucial M4 256GB (Marvell)
  • Crucial C300 256GB (Marvell)
  • OCZ Vertex 3 240GB (SandForce 2281)
  • G.SKill Phoenix 100GB (SandForce 1222)
  • Intel X-25M 160GB
  • OCZ Vertex 120GB (Indilinx Barefoot)
    • 79
    • 63
    • 50
    • 42
    • 32
    • 13
0
10
20
30
40
50
60
70
80
MB/sec, Higher Is Better
  • Average Random Write

AS SSD

Incompressible Data, 4K Random Read Speed (64 thread)

  • Crucial C300 256GB (Marvell)
  • OCZ Vertex 3 240GB (Beta SandForce 2281)
  • Intel X-25M 160GB
  • Crucial M4 256GB (Marvell)
  • G.SKill Phoenix 100GB (SandForce 1222)
  • OCZ Vertex 120GB (Indilinx Barefoot)
    • 216
    • 178
    • 172
    • 158
    • 128
    • 59
0
50
100
150
200
MB/sec, Higher Is Better
  • Average Random Read

AS SSD

Incompressible Data, 4K Random Write Speed (64 thread)

  • OCZ Vertex 3 240GB (Beta SandForce 2281)
  • Crucial M4 256GB (Marvell)
  • Crucial C300 256GB (Marvell)
  • G.SKill Phoenix 100GB (SandForce 1222)
  • Intel X-25M 160GB
  • OCZ Vertex 120GB (Indilinx Barefoot)
    • 220
    • 216
    • 176
    • 95
    • 64
    • 13
0
50
100
150
200
250
MB/sec, Higher Is Better
  • Average Random Read

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