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
Intel X25-M 160GB (02HD firmware, clean)
Intel X25-M 160GB (02HD firmware, dirty)
OCZ Vertex 128GB (v1.5 firmware, clean)
OCZ Vertex 128GB (v1.5 firmware, dirty)
G.Skill Falcon 2 128GB (clean)
G.Skill Falcon 2 128GB (dirty)
Corsair P128 (19C1Q firmware, clean)
Corsair P128 (19C1Q firmware, dirty)
Samsung SpinPoint F3 1TB (fastest hard disk)
262
262
246
246
241
244
176
173
144
0
50
100
150
200
250
MB/sec, higher is better
ATTO
64KB Sequential Write Speed
OCZ Vertex 128GB (v1.5 firmware, clean)
OCZ Vertex 128GB (v1.5 firmware, dirty)
G.Skill Falcon 2 128GB (clean)
G.Skill Falcon 2 128GB (dirty)
Corsair P128 (19C1Q firmware, clean)
Corsair P128 (19C1Q firmware, dirty)
Intel X25-M 160GB (02HD firmware, clean)
Intel X25-M 160GB (02HD firmware, dirty)
Samsung SpinPoint F3 1TB (fastest hard disk)
191.7
192.2
188.0
177.0
159.1
154.2
106.1
106.4
147.6
0
50
100
150
200
MB/sec, higher is better
For analysis of these results, please see the Results Analysis page.
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