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Differences Between Intel® SSD Controllers—Data Compression


Last Reviewed: 16-Mar-2017
Article ID: 000006433

Data compression is the process of encoding information so that fewer bits are stored on the drive. Data compression reduces write amplification, which can increase the endurance of a solid state drive.

The data compression engine in the Intel® Solid State Drive (Intel® SSD) controller optimizes performance based on the data pattern of the workload.

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Intel® SSD 525 Series

Compressible performance

Specification Unit Intel® SSD 525 Series
30 GB 60 GB 90 GB 120 GB 180 GB 240 GB
Random 4 KB read (up to) IOPS 5,000 15,000 25,000 25,000 50,000 50,000
Random 4 KB write (up to)1 IOPS 80,000 80,000 80,000 80,000 80,000 80,000
Random 4 KB write (TYP)2 IOPS 10,000 23,000 38,000 40,000 60,000 60,000
Sequential read (up to)3
SATA 6 Gb/s
SATA 3 Gb/s
MB/s 500
280
550
280
550
280
550
280
550
280
550
280
Sequential write (up to)3
SATA 6 Gb/s
SATA 3 Gb/s
MB/s 275
240
475
245
485
250
500
260
520
260
520
260
 

1 Random 4 KB write performance measured using out-of-box SSD.
2 Performance measured using Iometer* with Queue Depth 32. Measurements are done on 8 GB of Logical Block Address (LBA) range on a full SSD.
3 Performance measured using Iometer* with Queue Depth 32.

Incompressible performance

Specification Unit Intel® SSD 525 Series
30 GB 60 GB 90 GB 120 GB 180 GB 240 GB
Random 4 KB read (up to)1 IOPS 7,000 12,000 24,000 24,000 46,000 46,000
Random 4 KB write (up to)1 IOPS 2,500 6,900 6,900 13,000 13,000 16,500
Sequential read (up to)1 MB/s 200 430 470 550 550 550
Sequential write (up to)1 MB/s 40 80 115 150 170 235
 

1 Performance measured using Iometer with Queue Depth 32. Measurements are done on 8 GB of Logical Block Address (LBA) range.

 
Intel® SSD 520 Series

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 6 Gb/s
SATA 3 Gb/s
MB/s 550
280
550
280
550
280
550
280
550
280
Sequential write (up to) 3
SATA 6 Gb/s
SATA 3 Gb/s
MB/s 475
245
500
260
520
260
520
260
520
260
 

1 Random 4 KB write performance measured using out-of-box SSD.
2 Performance measured using Iometer* with Queue Depth 32. Measurements are done on 8 GB of Logical Block Address (LBA) range on a full SSD.
3 Performance measured using Iometer* with Queue Depth 32.

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
18,0002
24,0001
35,0002
46,0001
56,0002
46,0001
56,0002
46,0001
56,0002
Random 4 KB write (up to) IOPS 6,9001
22,0002
13,0001
42,0002
13,0001
54,0002
16,5001
60,0002
9,5001
36,0002
Sequential read (up to) MB/s 4301
4752
5501
5152
5501
4852
5501
5152
5501
5002
Sequential write (up to) MB/s 801
852
1501
1702
1701
2402
2351
2952
2751
2352
 

1 Performance measured using Iometer* with Queue Depth 32. Measurements are done 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.

 
Intel® SSD 330 Series

Random read and write Input/Output Operations Per Second (IOPS)

Specification Unit Intel® SSD 330 Series
60 GB 120 GB 180 GB 240 GB
Random 4 KB read1 IOPS 12,000 22,500 42,000 42,000
Random 4 KB write1 IOPS 20,500 33,000 52,000 52,000
 

1 Performance measured using Iometer* with Queue Depth 32. Measurements are done on 8 GB of Logical Block Address (LBA) range on a full SSD.

Sequential read and write bandwidth

Specification Unit Intel® SSD 330 Series
60 GB 120 GB 180 GB 240 GB
Sequential read SATA 6 Gb/s1 MB/s 500 500 500 500
Sequential write SATA 6 Gb/s1 MB/s 400 450 450 450
 

1 Performance measured using Iometer* with Queue Depth 32.

 
Intel® SSD 335 Series

Random read and write Input/Output Operations Per Second (IOPS)

Specification Unit Intel® SSD 335 Series
80 GB 180 GB 240 GB
Random 4 KB read (up to)1 IOPS 15,000 42,000 42,000
Random 4 KB write (up to)1 IOPS 25,000 52,000 52,000
 

1 Performance measured using Iometer* with Queue Depth 32. Measurements are done on 8 GB of Logical Block Address (LBA) range on a full SSD.

Sequential read and write bandwidth

Specification Unit Intel® SSD 335 Series
80 GB 180 GB 240 GB
Sequential 128 KB read SATA 6 Gb/s1 MB/s 500 500 500
Sequential 128 KB write SATA 6 Gb/s1 MB/s 400 450 450
 

1 Performance measured using Iometer* with Queue Depth 32.

 
Intel® SSD 530 Series (M.2)

Compressible performance

Specification Unit Intel® SSD 530 Series (M.2)
80 GB 180 GB 360 GB
Random 4 KB read (up to)1 IOPS 24,000 41,000 41,000
Random 4 KB write (up to)2 IOPS 80,000 80,000 37,000
Random 4 KB write (TYP)1 IOPS 33,000 49,000 29,500
Sequential 128 KB read SATA 6 Gb/s1 MB/s 540 540 540
Sequential 128 KB write SATA 6 Gb/s1 MB/s 480 490 490
 

1 Performance measured using Iometer* with Queue Depth 32. Measurements are done on 8 GB of Logical Block Address (LBA) range on a full SSD.
2 Random 4 KB writes measured using out-of-box SSD.

Incompressible performance

Specification Unit Intel® SSD 530 Series (M.2)
80 GB 180 GB 360 GB
Random 4 KB read (up to)1 IOPS 20,500 37,500 37,500
Random 4 KB write (up to) 1 IOPS 9,200 17,000 10,000
Sequential 128 KB read SATA 6 Gb/s1 MB/s 430 470 525
Sequential 128 KB write SATA 6 Gb/s1 MB/s 100 170 240
 

1 Performance measured using Iometer* with Queue Depth 32.

 
Intel® SSD 530 Series (2.5-inch/mSATA)

Compressible performance

Specification Unit Intel® SSD 530 Series (2.5-inch/mSATA)
120 GB 180 GB 240 GB
Random 4 KB read (up to)1 IOPS 24,000 41,000 41,000
Random 4 KB write (up to)2 IOPS 80,000 80,000 80,000
Random 4 KB write (TYP)1 IOPS 37,500 49,000 49,000
Sequential 128 KB read SATA 6 Gb/s1 MB/s 540 540 540
Sequential 128 KB write SATA 6 Gb/s1 MB/s 480 490 490
 

1 Performance measured using Iometer* with Queue Depth 32. Measurements are done on 8 GB of Logical Block Address (LBA) range on a full SSD.
2 Random 4 KB writes measured using out-of-box SSD.

Incompressible performance

Specification Unit Intel® SSD 530 Series (2.5-inch/mSATA)
120 GB 180 GB 240 GB
Random 4 KB read (up to)1 IOPS 18,000 37,500 37,500
Random 4 KB write (up to) 1 IOPS 15,000 17,000 23,000
Sequential 128 KB read SATA 6 Gb/s1 MB/s 450 470 510
Sequential 128 KB write SATA 6 Gb/s1 MB/s 130 170 230
 

1 Performance measured using Iometer* with Queue Depth 32.