F-240 CFast TM Card - Swissbit

4.2 System Performance
Table 2: System Performance
System Performance Typ. Max. Unit
Data transfer Rate (SATA burst (1.5 or 3.0Gb/s)) 150 or 300 300 MB/s
Sustained Sequential Read
128kB Block size (1)
Sustained Sequential Write
128kB Block size
2GB
4…16GB
32…64GB
94
108
116
100
115
120
MB/s
(1)
2GB
4…16GB
32…64GB
57
86
111
65
95
120
Sustained Sequential Read
4kB Block size (1)
Sustained Sequential Write
4kB Block size
2GB
4…16GB
32…64GB
42
46
46
50
50
50
MB/s
(1)
2GB
4…16GB
32…64GB
36
40
40
40
45
45
Sustained Random Read
4kB Block size (1)
Sustained Random Write
(1) (2)
4kB Block size
2GB
4…16GB
32…64GB
2GB
4…16GB
32…64GB
13
11.8
11.2
0.31
0.28
0.21
15
14
13
0.37
0.35
0.30
MB/s
(1) (2)
Trimmed Random Write
4kB Block size
2GB
4…16GB
32…64GB
1.3
1.0
0.95
1.5
1.2
1.1
MB/s
1. All values refer to Toshiba Flash chips in UDMA6 mode (SATA 3.0Gbit/s) with Sequential write/read test (256 sectors
multiple commands) and sequential and random write/read test (8 sectors multiple commands) without NCQ.
With NCQ transfer the speed is even faster.
Sustained Speed depends on flash type and number, file/cluster size, and burst speed.
2. The typical random write speed values are really random access across the whole drive. Random write speed
values in file systems are much larger.
Swissbit AG Swissbit reserves the right to change products or specifications without notice. Revision: 1.20
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