Posted by CANbike on Fri, 8 Feb 2013

Benchmark: Lexar Jumpdrive S73 (16GB)


The Lexar JumpDrive S73 can often be found at heavily discounted prices. I bought multiple 16GB models for $9.99 at Best Buy and Futureshop. They frequently go on sale for this price.

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”. In addition, the 16GB model can often be found cheaper when on sale for $9.99.

Benchmarked is the 16GB model formated to have a single fat32 partition.

The device is fairly bulky but made of a colorful sturdy plastic. It will still fit in a loose pocket and is hard to lose. Unlike other cheap drives, the performance is in the ballpark of the advertised ratings. Outstanding performance for the price especially when compared to other $10 flash drives. Even though it is USB 3.0 rated, performance matches that of a USB 2.0 rating. The read speeds may be slightly better on a USB 3.0 port, but the claimed write speed is within the performance of a USB 2.0 port. The benchmarks performed were on a USB 2.0 port and come close to the claimed 20MB/s write speed.

The Lexar JumpDrive S73 (16GB, 32GB, 64GB) are easily worth the price for the USB 2.0 performance alone. The benchmarks confirm this. On the other hand, the USB 3.0 performance, based on the specs provided by Lexar, are disappointing and nowhere near maximum USB 3.0 throughput speed. Also avoid the 8GB model as it has a lower read and write speed.

In my experience, Lexar is a reliable name brand manufacturer of flash drives and their warranties reflect that. These Lexar flash drives come with a three-year limited warranty.

Lastly, the S73 does not come with a lanyard. Despite the omission, these are great USB 2.0 flash drives for the $10 price range.

Device Information

fdisk -l  /dev/sdi

Disk /dev/sdi: 16.0 GB, 16022241280 bytes
255 heads, 63 sectors/track, 1947 cylinders, total 31293440 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: 0x00000000

   Device Boot      Start         End      Blocks   Id  System
/dev/sdi1   *         128    31293439    15646656    c  W95 FAT32 (LBA)

Device Read Benchmark (USB 2.0)

hdparm -t  /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, 53.2811 s, 19.7 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, 56.9985 s, 18.4 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, 56.7316 s, 18.5 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, 60.0048 s, 17.5 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, 57.1006 s, 18.4 MB/s


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