G-Technology G-DRIVE Mini & Hitachi Touro Mobile Pro 750 GB ReviewRHKCommander959 - November 7, 2011
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Testing these drives should be interesting, considering that the hard drives appear to be identical. With high capacity 7200RPM drives, speed is a key factor here. To test the drives, I will be running through several benchmarks with each available connectivity option. These two Hitachi drives will then be compared with two Seagate FreeAgent drives with their varying connectivity options. Each drive will have its own individual color on the performance graphs, with a unique shade of that color for each connection. This should help to easily distinguish the drives.
- Processor: Intel Core I7 920 200x18 3.6 GHz
- Cooling: Noctua NH-U12P SE 1366
- Motherboard: ASUS P6T Deluxe OC Palm Edition
- Memory: Mushkin 996805 Redline PC312800 6-8-6-24 1600 MHz
- Video Card: XFX HD 6970
- Power Supply: Mushkin 1000W Joule Modular power supply
- Hard Drive: 1 x Seagate 1 TB SATA
- Optical Drive: LG DVD-RW
- OS: Windows 7 Professional 64-bit
- Case: Cooler Master HAF 932
- Hitachi G-Drive Mini 750 GB Firewire 400 & USB 2.0
- Hitachi Touro Mobile Pro 750 GB USB 3.0 & USB 2.0
- Seagate FreeAgent Go 640 GB USB 2.0
- Seagate FreeAgent GoFlex USB 3.0 & USB 2.0
- HD Tune: Average Transfer Rate, Access Time, Burst Rate, CPU Usage
- SiSoftware Sandra Professional XIIc: Physical Disk Drive Index, Physical Disk Access Time
- WinRAR 10 MB, 100 MB, 500 MB Transfer
HDTune allows you to test many things with hard drives beyond benchmarking. For the purposes of this review, however, I just used it to benchmark the Average Transfer Rate, Access Time, and Burst Rate.
SiSoft Sandra allows you to run a variety of hardware benchmarks on your PC. For testing, I investigated the Physical Disk Drive Index and Access Time.
Real Time File Transfer:
Here, I took 10 MB, 100 MB, and 500 MB zipped files and transferred them from the internal to external drive and vice versa. At the beginning of the transfer, I started a stopwatch and stopped it at the end, recording the total time it took to complete. A result of one second was an instant transfer – no dialog box would be shown for the transfer in that case because it would complete before one could be displayed.
The extra bandwidth provided by USB 3.0 proved to bring performance benefits to the Touro Mobile Pro and FreeAgent GoFlex Ultra. The FireWire 400 connection was slightly superior to USB 2.0, though still limiting to the G-DRIVE. Unfortunately, the test rig did not support FireWire 800 – the G-DRIVE could have really shown off its potential in that case. In testing, the limits of USB 2.0 can be very clearly seen, especially with the Touro Mobile Pro.