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 Random Read
Outstanding I/Os |
Intel 520 (6 Gb/s) |
Intel 520 (3 Gb/s) |
Intel X25-M G2 |
Difference |
1 |
13,456 IOPS |
14,132 IOPS |
5,214 IOPS |
+ 158.1% |
8 |
43,535 IOPS |
47,174 IOPS |
28,944 IOPS |
+ 50.4% |
32 |
63,251 IOPS |
49,083 IOPS |
48,085 IOPS |
+ 31.5% |
4 KB Random Write
Outstanding I/Os |
Intel 520 (6 Gb/s) |
Intel 520 (3 Gb/s) |
Intel X25-M G2 |
Difference |
1 |
17,839 IOPS |
17,844 IOPS |
13,171 IOPS |
+ 11.4% |
8 |
42,580 IOPS |
48,498 IOPS |
13,637 IOPS |
+ 20.9% |
32 |
48,458 IOPS |
42,705 IOPS |
19,098 IOPS |
+ 28.8% |
512 KB Random Read
Outstanding I/Os |
Intel 520 (6 Gb/s) |
Intel 520 (3 Gb/s) |
Intel X25-M G2 |
Difference |
1 |
704 IOPS |
508 IOPS |
373 IOPS |
+ 88.8% |
8 |
759 IOPS |
539 IOPS |
395 IOPS |
+ 92.0% |
32 |
759 IOPS |
539 IOPS |
396 IOPS |
+ 91.5% |
512 KB Random Write
Outstanding I/Os |
Intel 520 (6 Gb/s) |
Intel 520 (3 Gb/s) |
Intel X25-M G2 |
Difference |
1 |
448 IOPS |
482 IOPS |
196 IOPS |
+ 128.7% |
8 |
460 IOPS |
497 IOPS |
198 IOPS |
+ 132.4% |
32 |
466 IOPS |
497 IOPS |
198 IOPS |
+ 135.7% |
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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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