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ATTO - Compressable Sequential speeds

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 1024KB performance.

TRIM is essential for an SSD to maintain its performance. To test whether a drive supports TRIM well or not, we fill and empty each drive mercilessly, writing and then deleting over 500GB of data before emptying the Recycle Bin to trigger the TRIM command. we waited five minutes for each drive to clear its decks. If the drive supports TRIM perfectly, there should be little to no performance drop-off shown in the lighter tone bars.

ATTO Disk Benchmark

1,024KB Compressable Sequential Read Speed

  • Crucial C300 128GB
  • Crucial C300 256GB
  • Crucial C300 64GB
  • G.Skill Phoenix 100GB
  • Corsair F100 100GB
  • OCZ Vertex 2 100GB
  • Intel X-25M 160GB
  • OCZ Vertex 120GB
    • 364
    • 364
    • 362
    • 362
    • 361
    • 360
    • 278
    • 278
    • 278
    • 278
    • 278
    • 278
    • 266
    • 259
    • 257
    • 257
0
100
200
300
400
MB/sec, Higher Is Better
  • Average Read
  • Average Read (post TRIM)

ATTO Disk Benchmark

1,024KB Compressable Sequential Write Speed

  • G.SKill Phoenix
  • OCZ Vertex 2 100GB
  • Corsair F100 100GB
  • Crucial C300 256GB
  • OCZ Vertex 120GB
  • Crucial C300 128GB
  • Intel X-25M 160GB
  • Crucial C300 64GB
    • 268
    • 268
    • 268
    • 268
    • 269
    • 268
    • 230
    • 229
    • 190
    • 187
    • 143
    • 143
    • 105
    • 100
    • 80
    • 80
0
50
100
150
200
250
300
MB/sec, Higher Is Better
  • Average Write
  • Average Write (Post TRIM)

Read our results analysis here.