Tag Archives: zero-G

Tom’s Hardware notebook drive roundup

Comprehensive evaluation of the top four 7200 rpm notebook drives

Tom’s Hardware compared performance notebook drives from Seagate, Hitachi, Samsung and WD with the depth and precision that only Tom’s can.  The value-add here is their understanding of the complex mix of factors that interact in real-life notebook use: performance, power, durability, security. 

Note that “performance” class 7200 rpm drives are on their way to becoming “mainstream” class, since more people are replacing desktops and expect desktop performance. 

Conclusions from the review:

Although we found ups and downs for each of the four products, all the drives passed the basic requirements for high-performance notebook hard drives, with great benchmark results. However, you should not just go any purchase any of the four drives, as their characteristics mean that some are more suitable for specific applications.
#4 Samsung’s Spinpoint MP2 is a good performer, delivering great throughput of up to 86 MB/s, and dominating the PCMark05 application benchmark, which is pretty relevant. Yet the drive is not a suitable overall recommendation, as its access time and I/O performance are a bit weak, and it’s as power-hungry as first-generation 7,200 RPM drives by Hitachi and Seagate. In terms of efficiency, Samsung is simply not yet where it could be.
#3 The Hitachi Travelstar 7K320 offers balanced performance and delivers good results across all benchmarks, but it does not win a single one of them except the Windows XP startup benchmark of PCMark05. If you want maximum performance or efficiency you might want to look for another drive, but if you find this model installed in your new notebook there is no reason to worry—it’s a good product.
#2 Western Digital’s new Scorpio Black has arrived with a bang. It has the fastest access time and great I/O performance, beating all the other 2.5″ hard drives. Though its throughput cannot quite match the transfer rates of the Seagate drive, WD manages to get excellent results in all of the benchmarks. And despite good but not exciting power consumption results, we found some surprises: WD implemented a sensible power management solution, which has the drive consume the least power at low-power idle and when playing DVD video off the HDD.#1 Seagate Momentus 7200.3. We were looking at the four hard drives from a mobile user’s perspective, so we paid close attention to performance per watt ratings. Not only does Seagate hit new transfer rate records, but it also beats the competition by providing the best combination of low power consumption and high performance. It might not win all the benchmarks, but overall it is on top. Its lead over WD was very small, though.  

Seagate sees the importance of 7200 rpm for notebook and Tom’s sees the results in Momentus.  Expect to see more of the good stuff in future versions of this winner.


Drop-safe notebooks

Slow-motion video shows a laptop disk drive bracing for a fall

What’s the one irreplaceable piece of a notebook computer?  Any data that’s not backed up.  The latest in laptop data protection is a zero-G sensor that automatically parks a hard drive head whenever a laptop goes into free fall. 


This is an extremely slow-motion video of an actual disk drive head being parked as the drive falls.  The drive spins at 7200 rpm, which is seen here as very slow rotation.  Note the bounce at the bottom!

More facts about the zero-G sensor and the G-Force Protection feature on Seagate’s Momentus 7200 drive: 

  • It is fast enough to protect in drops as little as 7 inches 
  • It senses in 3 axes, allowing it to “feel” head-over-heels tumbles as well as a simple vertical drop
  • The drive is plug-compatible with standard laptop drives, and requires no configuration to enable the feature

Very cool upsell for a new or existing laptop!