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IOPS Scaling
In these tests, we tested the drive's ability to tackle multiple input/output operations. Again, we compared the 240 GB Intel 520 solid state drive (in both SATA 6 Gb/s and SATA 3 Gb/s modes) to its predecessor, the Intel X25-M G2. If you wish to see how the Intel 520 SSD compares to other solid state drives, take a look at our Solid State Drive Performance Comparison Guide, which we will be updating shortly.
Do note that these results are based on the average of separate tests using compressible and non-compressible data. This is to address the fact the newer SSD controllers like the SandForce SF-2281 compress data for better performance and lower wear on the memory cells.
4 KB Sequential Read
Outstanding I/Os |
Intel 520 (6 Gb/s) |
Intel 520 (3 Gb/s) |
Intel X25-M G2 |
Difference |
1 |
15,900 IOPS |
14,215 IOPS |
17,401 IOPS |
- 8.6% |
8 |
48,823 IOPS |
47,605 IOPS |
49,557 IOPS |
- 1.5% |
32 |
63,846 IOPS |
49,950 IOPS |
49,038 IOPS |
+ 27.8% |
4 KB Sequential Write
Outstanding I/Os |
Intel 520 (6 Gb/s) |
Intel 520 (3 Gb/s) |
Intel X25-M G2 |
Difference |
1 |
17,604 IOPS |
17,410 IOPS |
14,058 IOPS |
+ 25.2% |
8 |
42,444 IOPS |
48,080 IOPS |
22,101 IOPS |
+ 92.0% |
32 |
42,467 IOPS |
48,118 IOPS |
22,276 IOPS |
+ 90.6% |
512 KB Sequential Read
Outstanding I/Os |
Intel 520 (6 Gb/s) |
Intel 520 (3 Gb/s) |
Intel X25-M G2 |
Difference |
1 |
708 IOPS |
508 IOPS |
501 IOPS |
+ 41.3% |
8 |
759 IOPS |
539 IOPS |
509 IOPS |
+ 49.2% |
32 |
759 IOPS |
540 IOPS |
487 IOPS |
+ 55.7% |
512 KB Sequential Write
Outstanding I/Os |
Intel 520 (6 Gb/s) |
Intel 520 (3 Gb/s) |
Intel X25-M G2 |
Difference |
1 |
447 IOPS |
482 IOPS |
197 IOPS |
+ 126.6% |
8 |
459 IOPS |
497 IOPS |
199 IOPS |
+ 130.3% |
32 |
461 IOPS |
497 IOPS |
199 IOPS |
+ 132.0% |
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• The 240 GB Intel 520 Series SSD |
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• The SSD Controller, The Flash Memory |
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• Testing The 240 GB Intel 520 SSD |
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