detail information

On this page we will take a look at the drives performance compared to other High speed USB 2.0 Removable drives.

The USB capabilities of the Verbatim Store 'n' Go USB 8GB HD Drive are as follows: High speed USB 2.0/USB 1.1 compatible.

HD Tach and PassMark Performance Test 6.0 benchmarking utilities will be used for the performance tests.

For these test Write caching was set to Optimize for quick removal. However it is recommended to read the safe removal notes under the options.

Verbatim Store 'n' Go USB 8GB HD Drive write caching options

HD Tach RW:

Options selected for first HD Tach test

Sequential Read test (8Mb zones)

Burst test

Benchmark results

HD Tach results (8Mb zones)

• Random access = 35.4ms

• CPU utilization  = 3% +/-2%

• Average read = 7.6 MB/s

• Burst Speed = 25.0 MB/s

Second Test

Options selected for second HD Tach test

Sequential Read test (8Mb zones)

Burst test

Benchmark results

HD Tach test 2 results (32Mb zones)

• Random access = 35.3ms

• CPU utilization  = 3% +/-2%

• Average read = 7.5 MB/s

• Burst Speed = 25.3 MB/s

For comparison purposes here is a HD Tach test of a Memorex 8GB MEGA Travel Drive

HD Tach results

• Random access = 34.6ms

• CPU utilization  = 4% +/-2%

• Average read = 7.8 MB/s

• Average write = 7.8 MB/s

• Burst Speed = 23.9 MB/s

PassMark Performance Test 6.0

Verbatim Store 'n' Go USB 8GB HD Drive

Performance Test results

• Sequential Read = 9.4 MB/s

• Sequential Write = 9.4. MB/s

• Random seek = 0.41 MB/s

• Disc Mark = 69.4 Composite average

• PassMark Rating = 13.9 Composite average

For comparison purposes here is a test of a Memorex 8GB MEGA Travel Drive

Memorex 8GB MEGA Travel Drive

Performance Test results

• Sequential Read = 9.4 MB/s

• Sequential Write = 9.4. MB/s

• Random seek = 0.41 MB/s

• Disc Mark = 69.5 Composite average

• PassMark Rating = 13.9 Composite average

Reviewers Note: Composite averages are using CPU and other installed hardware for the final computations. The Memorex 8GB MEGA Travel Drive was not tested on this computer and is only shown for comparison purposes.

Below is an explanation of the Benchmark from the Performance test 6.0 help file.

Disk graphs (Read and Write)

These graphs show details of the disk read and write performance. The graph shows the transfer speed (in MB/Sec) over a period of time or compared to the number of megabytes transfer to or from the disk. Depending on the disk test mode selected the Windows cache and hard disk controller cache can have a significant impact on the measured performance. If the file is transferred to or from the cache rather than the disk very high results will be recorded. The size of the cache and its contents are determined by the Windows operating system. 

This suite contains a number of tests that exercise the mass storage units (hard disk or otherwise) connected to the computer. For each test a file is created in the root directory of the selected disk. The file size needs to be large in order to get an accurate measurement. The test file size is 200MB and the read/write block sizes used are 16KB. Under Windows 2000 and above, each test uses uncached asynchronous file operations (with an IO queue length of 20). Under Windows 98 and Windows ME, each test uses uncached synchronous file operations. Each test runs for at least 20 seconds.

Disk Sequential Read

A large test file is created on the disk under test. The file is read sequentially from start to end.

Disk Sequential Write

A large file is written to the disk under test. The file is written sequentially from start to end.

Disk Random Seek RW

A large test file is created on the disk under test. The file is read randomly; a seek is performed to move the file pointer to a random position in the file, a 16KB block is read or written then another seek is performed. The amount of data actually transferred is highly dependent on the disk seek time.

Average file transfers times with this Review computer are as follows:

• 20 MB File: under 5 seconds

• 50 MB file: under 8 seconds

• 100 MB file: under 12 seconds

Summation: Overall the Verbatim Store 'n' Go USB 8GB HD Drive is comparable with other storage media but leaps and bounds ahead of others' space capacity.

On the next page we will take a look at the functions and use of the drive.