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HDD Western Digital VelociRaptor WD1000DHTZ Review

Western Digital started the winning of HDD market almost ten years ago. Since that time the company has managed to dramatically improve its manufacturing process and achieve the desirable heights. Its latest HDD solution, codenamed VelociRaptor WD1000DHTZ, deserves special attention thanks to its performance showings and low operational temperatures.

General Peculiarities

Flagship HDD VelociRaptor WD1000DHTZ goes in 1TB volume capacity and is destined for the employment primarily in workstations. It combines high performance along with reliability to become an efficient solution for professional office needs, compact servers, high-end workstations, rendering processes, and for the management of graphics content of high resolution. Upon the whole, this model stands somewhere between the entry level SSDs and winchesters of 3.5 inch form-factor.

Additionally, Western Digital delivers modifications of VelociRaptor which go in more modest capacities (250 GB and 500 GB). All models in the series support Advanced Format function and are able to develop the speed of spindle up to 10000/rpm. Throughput capacity of the interface equals to 6 Gb/sec, while the overall volume of cache-memory approximates 64 MB.

HDD WD1000DHTZ is covered by a metallic framework that facilitates the realization of passive cooling technology. Hence, such framework approach results in low operational temperatures that do not exceed the mark of 35 degrees. Other specifications of this HDD model include:
— form-factor: 3.5 inch;
— number of disks: 3;
— integrated interface: SATA III;
— operational temperatures: 5-55 degrees on various conditions.

Power Consumption

In spite of the high speed of spindle rotation, this model of VelociRaptor is able to retain low temperatures. At the same time, Western Digital managed to design high-end HDD with really low level of power consumption. Thus, WD1000DHTZ consumes only 4W in standby mode, not more than 5.5W in writing mode, and up to 6.4W in fully operational mode. Such consumption index allows this HDD to surpass all rival products.

Speed Performance

According to the manufacturer's data, this hard drive is 25% more efficient than all its predecessors. Testing results showed that this new model is even more efficient than it was supposed initially. Indeed, the maximal consecutive Read/Write speed of VelociRaptor WD1000DHTZ achieves the margin of 209.1 Mb/sec, while the minimal speed equals to 114.7 Mb/sec. Such speed index is sufficient to manage even the most voluminous applications. Moreover, this HDD is considered to be the fastest hard drive with SATA interface in the market; it is able to provide the highest performance when working with various applications. The same speed achievements can be traced at random Read/Write speeds (4KB). Testing results proved that this HDD model is able to surpass all other competitors in the segment.

To continue, access time on reading operations fluctuates within the measures of 6.78 ms and surpasses its predecessor in this respect. Access time on writing operations approximates 8.83 ms that is supposed to be an average index for 3.5 inch HDD.
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  • 23 August 2012, 12:55
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