Drive Speed

Speed testing flash memory and hard disks

Storage size is not the only important factor for disk drives. Data transfer speed is very important for efficient use of the drive.

When testing data transfer speed it is important to use a method that is actual testing the storage device and not just Operating system cache or RAM buffers on the device. Only this way can the true sustained transfer speed be measured.

Sustained transfer speed can most easily be tested with H2testw application.

The drives here are tested with H2testw version 1.4, unless otherwise mentioned. H2testw is made by Heise, most known for the world best computer magazine C't. With H2testw speed test the whole drive or at least 4 times the PC RAM size to avoid OS buffers hiding the actual drive read / write speed. Run test 3 or more times.

Sizes: KB = 1024 bytes, MB = 1024 KB, GB = 1024 MB, TB = 1024 GB

SD card

Name Mem size, format Write [MB/s] Read [MB/s] Test cond Test date Notes Shop
Toshiba SDXC 128GiB U3, Exceria N302, black with white, red, gray label 116.0 GB, 118744 MB, ExFAT-128KB 30.8 81.4 Transcend TS-RDF9K card reader USB3 2017-07-10 SKU: THN-N302R1280E4; Claims: read up to 90 MB/s CompUniv. 2017-07
Hama SDHC Card 32GB UHS-I U3, black with golden-brown label 30596 MB, FAT32-32KB 30.0 81.8 Kingston MobileLite G4 card reader USB3 2016-12-04 Hama SKU: 00114948; Claims: Write min. 30 MB/s, read up to 85 MB/s CompUniv. 2016-11
CnMemory SDHC Card 32GB class 10, blue with white gray label 30464 MB, FAT32-32KB 10.5 22.2 Kingston MobileLite G4 card reader USB3 2016-12-03 EAN: 4-040348-846317, Claims: Read up to 20 MB/s CompUniv. 2016-11
Kingston, black with bordaux label, 128GB SDXC, class 10 UHS-I, U3 122336 MB, ExFAT-128KB 77.2 81.4 Kingston MobileLite G4 card reader USB3 2016-12-02 Kingston SKU: SDA3/128GB; Claims: Write 80 MB/s, Read 90 MB/s CompUniv. 2016-11
SanDisk Ultra, Black with red and silver label, 32GB SDHC, class 10 UHS-I (30424 MB), FAT32-32KB 16.8 84.6 Kingston MobileLite G4 card reader USB3 2016-12-09 Prod-Id: SDSDUNC-032G-GN6IN, Claims: Speed up to 80 MB/s Saturn, 2016-05
CnMemory, Blue with white-yellow label, 128GB SDXC, class 10 (122175 MB), ExFAT-128KB 38.1 82.7 Kingston MobileLite G4 card reader USB3 2015-12-09 ComputerUniverse 2015-09-09
Samsung Evo Plus, red-orange and white design, 32GB MicroSDHC, class 10 UHS-I (30516 MB), FAT32-32KB 20.2 81.7 Kingston MobileLite G4 card reader USB3 2016-12-04 Claims write 20 MB/s, read 80 MB/s CompUniv. 2015-08-03
Lexar Premium series 300x, 32GB SDHC, class 10 UHS-I, black with black blue label (30531 MB), FAT32-32KB 21.2 43.1 Kingston MobileLite G4 card reader USB3 2016-12-04 Claims write 20 MB/s, read 45 MB/s CompUniv. 2015-08-02
CnMemory, 32GB MicroSDHC, class 10 UHS-I (30464 MB), FAT32 17.4 38.5 CSL card reader USB3 white 2015-07-31 ComputerUniverse
Transcend, Red line 300x, 32GB MicroSDHC, class 10 UHS-I (30424 MB), FAT32 13.1 42.4 CSL card reader USB3 white 2014-12-13
Transcend, Red Label 600x, 32GB SDHC, class 10 UHS-I (30631 MB), FAT32-64KB 23.5 81.1 Kingston MobileLite G4 card reader USB3 2016-12-03 Claims up to 90MB/s; Prod-Id: TS32GSDHC10U1E Amazon DE, 2014-12-12
Kingston, 64GB MicroSDXC, class 10 UHS-I (59792 MB), ExFAT 14.6 40.3 Kingston MobileLite G4 card reader USB3 2016-12-10 ComputerUniverse, 2014-10-25
Samsung Evo, 32GB MicroSDHC, class 10 UHS-I (29972 MB), FAT32-32KB 15.6 43.2 Kingston MobileLite G4 card reader USB3 2016-12-10 Claims up to 48MB/s; Prod-Id: MB-MP32D Saturn, 2014-09-01
Hama, 32GB MicroSDHC, class 10 gold series (30194 MB), FAT32 16.4 70.4 Hama card reader USB3 white 2014-04-30 Claims up to 22MB/s; Prod-Id: 00108086 CompUniv.
Tigo, 8GB MicroSDHC, class 4 (7442 MB), FAT32 4.32 20.5 Hama card reader USB3 white 2013-12-02 Exp-Tech
Intuix, 32GB MicroSDHC, class 10 (30016 MB), FAT32 12.5 36.8 Hama card reader USB3 white 2013-10-11 Aldi
Intuix, 32GB SDHC, class 10 (30016 MB), FAT32 12.0 35.0 Eminent USB3 2013-05-18 Aldi
Transcend, 32GB SDHC, UHS-I, red label (30962 MB) 33.3 54.6 Hama card reader USB3 white 2013-01-25 Transcend prod-id TS32GSDHC10U1
Claims up to 45 MB/s write, 85 MB/s read
Samsung Pro MicroSDHC 32GB, UHS-I (30594 MB), FAT32 18.2 54.3 Eminent USB3 2013-01-25 Claims up to 20 MB/s write, 70 MB/s read
Kingston 32GB UltimateXX 233X (30591 MB), FAT32 32.9 42.5 - 2013-01-22 Claims up to 35 MB/s write, 60 MB/s read
Sandisk Extreme 32GB, class 10, UHS-I (30424 MB), FAT32 31.3 36.2 Eminent USB3 SDXC reader 2013-01-22 Claims up to 45 MB/s
Transcend MicroSDHC 32GB (29970 MB), FAT32 17.3 31.7 Eminent USB3 SDXC reader in USB2 port 2012-12-17 -
Transcend Premium SDHC 32GB Class 10, blue with blue label, red banner with Transcend, rainbow color scale (30947 MB), FAT32-32KB 14.5 22.2 Kingston MobileLite G4 card reader USB3 2016-12-06 Prod-id: TS32GSDHC10 2012-10-10
SanDisk, 32GB MicroSD, UHS-I (30424 MB), FAT32 10.8 31.7 Eminent USB3 SDXC reader 2012-10-09 -
SanDisk, 2GB MicroSD (1883 MB), FAT16 7.32 19.8 Hama blue SD card reader 2012-10-05 -
CnMemory, 32 GB SDHC, Class 10 29.6 (30326 MB), FAT32 9.92 18.5 - 2012-08-08 Claims up to 22 MB/s
Medion 16GB MicroSDHC, Class 6 (15196 MB), FAT32 6.29 16.7 Hama USB-SD 00091092 transparent 2012-07-28 Aldi
Samsung, 2GB MicroSD (1935 MB), FAT16 6.55 15.7 Hama USB-SD 00091092 transparent 2012-07-24 -
Panasonic 2GB, Class 4 (1921MB), FAT16 11.4 19.3 - 2009-09-09 -

CF, Compact Flash

Name Size [GB] Write [MB/s] Read [MB/s] Test cond Test date Notes Shop
Transcend 32GB, 400x, UDMA7 (30527 MB), FAT32 29.0 73.3 - 2013-01-22 Claims up to wr 60 MB/s, rd 90 mb/s
Kingston 32GB (30527MB) FAT32 13.9 30.6 4GB tested, Aikuo USB IDE interface 2009-09-09 -

Image...


USB stick, pen drive, USB flash memory

Name Size [GB] Write [MB/s] Read [MB/s] Test cond Test date Notes Shop
Kingston DataTraveler USB3, 128 GB, blue / black design 117.8 (120610 MB) 52.3 138 - 2013-07-24 Claims wr 135 MB/s, rd 225 MB/s
Emtec 64GB, translucent green - 3.52 8.72 - 2012-07-07 -
SanDisk Cruzer 8GB (7654 MB), FAT32 10.6 23.9 - 2009-07-11 -
Super Talent 8GB, swivel (7708 MB) 10.1 29.6 - 2008-12-27 -

SSD, Solid State Disk

Name Size [GB] Write [MB/s] Read [MB/s] Test cond Test date Notes Shop
Kingston HyperX, 240GB, SATA, 2.5" 223.57 (228934 MB) NTFS 205 225 - 2013-07-24 Claims wr 510MB/s, rd 555MB/s
OCZ Agility 3, 120GB, SATA, 2.5" - 121 144 79 GB tested 2012-12-09 Claims wr 500MB/s, rd 525MB/s

Magnetic Hard Disk

Name Size [GB] Write [MB/s] Read [MB/s] Test cond Test date Notes Shop
Seagate Skyhawk ST6000VX0023 SATA3, 6TB 5.45 TB (5714739 MB), NTFS 219 222 1 TB tested, SATA2 interface 2017-07-03 Product presentation,
Product info
CompUniv.
Toshiba MD04ACA400 SATA3 3.64 TB (3815317 MB), NTFS 177 179 1 TB tested, SATA2 interface 2017-03-26 Product info CompUniv.
Seagate Expansion USB3 extern 4TB 3.64 TB (3815439 MB), NTFS 146 114 1 TB tested 2014-06-13 Saturn
Hitachi 500 GB, 2.5", HTS545050A7E380 NTFS 98.1 104 32 GB tested 2013-04-11 Slim 7mm model for Acer Aspire One 756 notebook
Seagate Expansion USB3 extern 2TB 1.81TB, NTFS 137 113 32 GB tested 2012-12-18 -
NS 320GB 305 NTFS 22.4 29.5 10 GB tested 2009-09-17 -
Iomega 500GB 477 NTFS 23.8 24.5 10 GB tested 2009-09-17 -
Samsung SATA HD103UJ/D 1TB 931.5
(953867 MB)
31.3 31.5 - 2008-12-17 7200 RPM, 3Gb/s, FW 1AA01113



Tags: Flash memory, Speed test, SD, CF, USB stick, SSD, HD

Page link: <http://foersom.org/HowTo/DriveSpeed.html>

Edited: 2017-07-10