Surprisingly, the WD20EADS is even quicker than the Barracuda 7200.12, which works at faster rotation speeds. Access time quicker than 15 ms can be considered fast, while anything above 20 ms would be really slow. Hard drives selected to run operating systems and applications at fast speeds should offer quick access times, while storage drives can be slower, as you typically won’t notice the difference.
The fastest and slowest drives in read access times are also the fastest ones in the write access tests.
As mentioned before, the new 2 TB WD20EADS does very well in access and I/O performance. Seagate obviously hasn’t optimized its new Barracuda 7200.12 for these workloads.
- New HDDs With 500 GB Per Platter (500 GB To 2 TB)
- Samsung Spinpoint F2 EcoGreen (500 GB)
- Seagate Barracuda 7200.12 (500 GB, 750 GB, and 1,000 GB)
- Western Digital Caviar Green WD20EADS (2 TB)
- Comparison Table and Test Setup
- Access Time And I/O Performance
- PCMark Vantage Application Benchmark
- Power Consumption
- Noise And Temperature