Intel Table 3. Incompressible Performance, Table 4. Latency

Intel® Solid-State Drive 520 Series
February 2012 Product Specification
Order Number: 325968-001US 7
Intel® Solid-State Drive 520 Series
Notes: 1. Performance measured using Iometer with Queue Depth 32. Measurements are performed on
8 GB of Logical Block Address (LBA) range.
2. Performance measured with incompressible data using AS-SSD* benchmark, where
MB/s = 1,048,576 bytes/second.
Notes: 1. Based on sequential 4 KB using Iometer with Queue Depth 1 workload with compressible (non-random) data pattern.
Write Cache Ena bled.
2. Power On To Ready time assumes proper shutdown.
Table 3. Incompressible Performance
Specification Unit Intel SSD 520 Series
60 GB 120 GB 180 GB 240 GB 480 GB
Random 4 KB Read (up to) IOPS 12,0001
18,000224,0001 35,000246,0001 56,000246,0001 56,000246,0001 56,0002
Random 4 KB Write (up to) IOPS 6,9001
22,000213,0001 42,000213,0001 54,000216,5001 60,00029,5001 36,0002
Sequential Read (up to) MB/s 4301
47525501 51525501 48525501 51525501 5002
Sequential Write (up to) MB/s 801
8521501 17021701 24022351 29522751 2352
Table 4. Latency
Specification Intel SSD 520 Series
60 GB 120 GB 180 GB 240 GB 480 GB
Latency1
Read
Write
Power On To Ready2
80 µs (TYP)
85 µs (TYP)
2 s (TYP)