Posted by CANbike on Sun, 24 Feb 2013

Benchmark: Lexar Jumpdrive S73 (64GB)

CANbike Lexar-S73-64GB-01-thumb.jpgCANbike Lexar-S73-64GB-02-thumb.jpgCANbike Lexar-S73-64GB-03-thumb.jpg

Benchmarked below is the 64GB Lexar Jumpdrive S73 formated to have a single ext2 partition. Previous benchmark results of the 16GB Lexar Jumpdrive S73 model, formated to have a single fat32 partition, can be found here.

The 64GB model is commonly found on sale for $44 at Best Buy and Futureshop. On occasion it can also be found on sale for $40.

The 16GB, 32GB, and 64GB model are rated at “up to 45MB/s read, 20MB/s write”. Avoid the 8GB model as it has a lower rating of “up to 40MB/s read, 10MB/s write”.

USB 2.0 Performance is excellent for the capacity and price range. The read speed is around 36MB/s. The write speed is around 20MB/s. Definitely higher end USB 2.0 flash drive performance.

The design is a bulky sturdy plastic that will fit in loose pockets. There is a nicely designed switch to retract the USB plug. Aesthetically speaking, the 64GB model is a pleasing bright green color.

Compared to the smaller 16GB model, this unit has similar read performance and slightly better write performance. Buy the 64GB model for the higher capacity needs and slight increase in performance; otherwise, buy the 16GB for the lower unit cost.

In the end, this is a great low cost high capacity USB 2.0 drive.

Device Information

fdisk -l  /dev/sdi

Disk /dev/sdi: 64.0 GB, 64021856256 bytes
255 heads, 63 sectors/track, 7783 cylinders, total 125042688 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0000507a

   Device Boot      Start         End      Blocks   Id  System
/dev/sdi1            2048   125042687    62520320   83  Linux

Device Read Benchmark (USB 2.0)

hdparm -t  /dev/sdi1

/dev/sdi1:
 Timing buffered disk reads: 112 MB in  3.04 seconds =  36.89 MB/sec

Device Write Benchmark: 1MB x 1000 (USB 2.0)

dd if=/dev/zero of=tempfile bs=1M count=1000 conv=fdatasync,notrunc
1000+0 records in
1000+0 records out
1048576000 bytes (1.0 GB) copied, 44.0036 s, 23.8 MB/s

Device Write Benchmark: 10MB x 100 (USB 2.0)

dd if=/dev/zero of=tempfile bs=10M count=100 conv=fdatasync,notrunc
100+0 records in
100+0 records out
1048576000 bytes (1.0 GB) copied, 53.7787 s, 19.5 MB/s

Device Write Benchmark: 100MB x 10 (USB 2.0)

dd if=/dev/zero of=tempfile bs=100M count=10 conv=fdatasync,notrunc
10+0 records in
10+0 records out
1048576000 bytes (1.0 GB) copied, 47.0281 s, 22.3 MB/s

Device Write Benchmark: 500MB x 2 (USB 2.0)

dd if=/dev/zero of=tempfile bs=500M count=2 conv=fdatasync,notrunc
2+0 records in
2+0 records out
1048576000 bytes (1.0 GB) copied, 54.8328 s, 19.1 MB/s

Device Write Benchmark: 1000MB x 1 (USB 2.0)

dd if=/dev/zero of=tempfile bs=1000M count=1 conv=fdatasync,notrunc
1+0 records in
1+0 records out
1048576000 bytes (1.0 GB) copied, 51.4746 s, 20.4 MB/s

Update:

USB 3.0 benchmarks have been performed. Results can be found here.