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Intel SSDSA2BW120A301 User Manual

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Intel
®
 Solid-State Drive 520 Series
Intel
®
 Solid-State Drive 520 Series
Product Specification
February 2012
6
Order Number: 325968-001US
Intel
®
 Solid-State Drive 520 Series
2.0
Product Specifications
2.1
Capacity
Notes: 1 GB = 1,000,000,000 bytes; 1 sector = 512 bytes.
LBA count shown represents total user storage capacity and will remain the same throughout the life of the drive.
The total usable capacity of the SSD may be less than the total physical capacity because a small portion of the capacity is 
used for NAND flash management and maintenance purposes.
2.2
Performance
The data compression engine in the Intel SSD 520 Series controller optimizes 
performance based on the data pattern of the workload. 
This section provides both compressible and incompressible Input/Output Operations 
Per Second (IOPS) and sustained sequential read and write bandwidth specifications.
Notes:
1.
Random 4 KB write performance measured using out-of-box SSD. 
2.
Performance measured using Iometer* with Queue Depth 32. Measurements are performed on 
8 GB of Logical Block Address (LBA) range on a full SSD.
3.
Performance measured using Iometer with Queue Depth 32.
Table 1.
User Addressable Sectors
Intel SSD 520 Series
Unformatted Capacity
(Total User Addressable Sectors in LBA Mode)
60 GB
117,231,408
120 GB
234,441,648
180 GB
351,651,888
240 GB
468,862,128
480 GB
937,703,088
Table 2.
Compressible Performance
Specification
Unit
Intel SSD 520 Series
60 GB
120 GB
180 GB
240 GB
480 GB
Random 4 KB Read
 
(up to)
IOPS
15,000
25,000
50,000
50,000
50,000
Random 4 KB Write (up to)
1
IOPS
80,000
80,000
80,000
80,000
50,000
Random 4 KB Write (TYP)
2
IOPS
23,000
40,000
60,000
60,000
42,000
Sequential Read (up to)
3
SATA 6Gb/s
SATA 3Gb/s
MB/s
550
280
550
280
550
280
550
280
550
280
Sequential Write
 
(up to)
3
SATA 6Gb/s
SATA 3Gb/s
MB/s
475
245
500
260
520
260
520
260
520
260