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Why You Need TRIM For Your SSD

ATTO Disk Benchmark Results

Website: ATTO Disk Benchmark

With Window 7's improved caching technology, our traditional sequential read/write benchmark, FC -Test, was no longer practical, due to data being immediately cached and thus invalidating our copy and read performance figures.

Instead then we've opted for ATTO disk benchmark as a straight forward but surprisingly popular tool for testing a hard disk or SSD's ability to deal with reading and writing files of various sizes. The benchmark sequentially writes and reads files from 0.5KB to 8MB and can also be adjusted for overlapped I/O and a variety of queue depths, although we've tested using the benchmark's default settings, recording 4KB, 64KB and 1024KB performance.

ATTO

64KB Sequential Read Speed

  • Corsair P128 (18C1Q firmware, clean)
  • Corsair P128 (18C1Q firmware, dirty)
  • Corsair P128 (19C1Q firmware, clean)
  • Corsair P128 (19C1Q firmware, dirty)
  • Intel X25-M 160GB (02G2 firmware, clean)
  • Intel X25-M 160GB (02G2 firmware, dirty)
  • Intel X25-M 160GB (02HD firmware, clean)
  • Intel X25-M 160GB (02HD firmware, dirty)
  • OCZ Vertex 128GB (v1.3 firmware, clean)
  • OCZ Vertex 128GB (v1.3 firmware, dirty)
  • OCZ Vertex 128GB (v1.5 firmware, clean)
  • OCZ Vertex 128GB (v1.5 firmware, dirty)
  • Samsung Spinpoint F3 1TB (fastest hard disk)
  • 178
  • 176
  • 176
  • 173
  • 264
  • 263
  • 262
  • 262
  • 246
  • 134
  • 246
  • 246
  • 144
0
50
100
150
200
250
MB/sec, higher is better

ATTO

64KB Sequential Write Speed

  • Corsair P128 (18C1Q firmware, clean)
  • Corsair P128 (18C1Q firmware, dirty)
  • Corsair P128 (19C1Q firmware, clean)
  • Corsair P128 (19C1Q firmware, dirty)
  • Intel X25-M 160GB (02G2 firmware, clean)
  • Intel X25-M 160GB (02G2 firmware, dirty)
  • Intel X25-M 160GB (02HD firmware, clean)
  • Intel X25-M 160GB (02HD firmware, dirty)
  • OCZ Vertex 128GB (v1.3 firmware, clean)
  • OCZ Vertex 128GB (v1.3 firmware, dirty)
  • OCZ Vertex 128GB (v1.5 firmware, clean)
  • OCZ Vertex 128GB (v1.5 firmware, dirty)
  • Samsung Spinpoint F3 1TB (fastest hard disk)
  • 166.9
  • 169.3
  • 159.1
  • 154.2
  • 84.3
  • 78.6
  • 106.1
  • 106.4
  • 187.9
  • 130.7
  • 191.7
  • 192.2
  • 147.6
0
50
100
150
200
MB/sec, higher is better

For analysis of these results, please see the Results Analysis page.