Performance in Battery Eater
First of all, let me explain why I used the Battery Eater utility for this test. There is a good and more popular utility to measure the battery life for notebooks. It is called Mobile Mark. Its algorithm (applications and work modes) simulates what some general user does on the notebook. For example, the notebook doesn’t work in the hardest operational mode – there are pauses in work when the notebook is idle. I guess this would help to check out how long the battery upholds the notebook and how much power this or that HDD consumes. The drawbacks of this program are the lack of stability in tests and long time of testing (about 3 hours in our case). Considering that charging the batteries requires 6 hours, we could spend a whole week for testing our seven drives. That’s why we chose a program by experienced Russian developers called Battery Eater. Its advantages are the small size of the program itself, visual representation of the data, no cost and less time for testing. The last parameter is achieved by loading all subsystems of the notebook to the full. When you run the program, there appears a window where a 3D battery is rendered. Thus, we have the CPU, GPU, HDD and memory working all the time. Of course, this test doesn’t try to simulate reality – you won’t use your notebook in such a work mode often. The extreme workload reduces the battery life to about an hour (in our case). By changing the HDD in the system, we can estimate its role in consuming the power resources of the notebook.
- Fujitsu MHS2060AT (Graph);
- Hitachi Travelstar 80GN (Graph);
- Seagate Momentus ST94811A (Graph);
- Toshiba MK4018GAS (Graph);
- Toshiba MK4019GAX (Graph);
- Toshiba MK6021GAS (Graph);
- Toshiba MK6022GAX (Graph).
As you see, the gap between the first and last hard drives is about 2 minutes. This is not much, but you should keep in mind that this gap may grow considerably if we were to use the notebook in the ordinary mode. Anyway, Seagate’s claims about the power asceticism of the Momentus proved true. The Hitachi was the second in this test, while the Fujitsu – the last. So, Seagate did make a product that is comparable to 4,200rpm drives in terms of power consumption.