We have moved our test bench to Windows 7 which was released very recently. One consequence of using Windows 7 is the inability to run HD-Tach, a popular hard drive benchmarking utility. I used PCMark Vantage’s HDD benchmark suite, Sisoft Sandra’s HDD test and HD Tune, a hard drive benchmark to show performance differences between 3 Gb/second, 6 Gb/second ports if any.
Test System
- ASUS P7P55D-E Premium motherboard
- Intel Core i5 750 CPU running at 2.66GHz
- 4GB Kingston KHX16000 DDR3 1600MHZ memory running at 1333MHz (CPU limitation)
- 1 Seagate Barracuda XT 2TB HDD
- Windows 7
- ATI Radeon HD 4870 1GB running Catalyst 9.10 drivers
Test software
- HD Tune 3.50
- PCMark Vantage
- Sisoft Sandra 2009 SP4 HDD test
- ATTO
Test Results
| HDD | Seagate 6Gb/second | Seagate 3Gb/second |
| ATTO | | |
| Write 8192MB | 134892 | 139810 |
| Read 8192MB | 150524 | 145625 |
| HD Tune | | |
| Minimum Transfer rate | 64.9MB/second | 64.9MB/second |
| Maximum transfer rate | 141.0MB/second | 139.6MB/second |
| Average | | |
| Access Time | 111.0MB/second | 110.7MB/second |
| Passmark MB/s | | |
| Sequential Read | 137.4 | 135.8 |
| Sequential write | 132 | 129.5 |
| Random Seek+RW | 5.9 | 6.1 |
| SISOFT Sandra 2009 SP4 | | |
| Drive Index | | 112.46MB/s |
| Random Access Time | 17.24ms | 16.97ms |
