the same,its price is also similar. Recently, code-named "Desktop HDD" Seagate 500GB hard market to break 

the deadlock,it is compared to the previous generation of products more than 50% performance boost,

 friends said this drive as "magic revision" 500GB hard drive.

 What is special about it, and today we will test the hard drive of a single product, and compare it with 

the old hard disk appearance comparative analysis:

 Seagate hard drive in order to simplify the consumer purchases the trouble need to remember cumbersome name

 and specifications and other details, as early as last March began a new generation of Seagate desktop drive 

simplifies named "Desktop HDD". In fact, it also has a suffix, the full name should be "Desktop HDD.15", 

that is,the 15th generation of Seagate hard drive.

 

 The new generation Barracuda Barracuda hard drive, compared to 7200.14, the 14th generation of 

Seagate hard drive, its maximum capacity from 160GB to 4TB, both 7200 rpm, the final model for the Barracuda 

XT 4TB, did not show up in the consumer market. )15th generation of Seagate hard drive "Desktop HDD" 

continuation Barracuda 7200.14 design basis, the difference is, Desktop HDD saving both 5900 rpm hard drive,

 there are 7200 high-speed hard drive; Barracuda 7200.14 hard drives are 7200 RPM speed.

 

 Desktop HDD 500GB Seagate hard drive can be fully dual-core master and single platter 1TB technology, 

to improve the accuracy of AcuTrac data access and other advanced hard drive technology, thereby laying 

the foundation for its powerful performance, called "Magic revision" 500GB hard drive, but its model 

"ST500DM002" still used in previous generations.

 

Brand: Seagate 2 different: Master upgraded dual-core cache expansion four times the best way to distinguish 

between the old and new 500GB Seagate hard drive is their code - "Desktop HDD" & "Barrcauda".. Their models 

are ST500DM002, but the core components for the crop, so there is a big difference between the two properties.

 Another effective method is to distinguish between the two drives back PCB board! Desktop HDD 500GB hard drive 

PCB board missing a corner, in fact, the great mystery of PCB, contains powerful "energy."

 

   Desktop HDD 500GB hard sharp performance, derived from its disk upgrade from 500GB per platter to

 platter 1TB, which means it's only one side of the disk, a magnetic head. This can reduce the manufacturing 

cost of the hard drive, the new Seagate 500GB hard drive is expected to drop the price point. In terms of the 

core components, the new master hard disk upgrade from single-core to dual-core, high-speed independent from 

16MB cache expansion to 64MB, upgraded motor control chip manufacturing process, the speed remains 7200. 

Upgrade to double the storage density of the disk, the data have a stronger ability to dual-core main processor,

 64MB cache expanded four times, and improve data access and other advanced precision AcuTrac hard disk technology,

 so this new wine in old bottles 500GB hard ashes, its performance can be increased dramatically.

 

HD Tune is a hard disk performance diagnostic tests. It can detect the hard disk transfer rate, burst data transfer

 rate, data access time, CPU utilization, health status, temperature and scan the disk surface. In addition, 

can also detect the hard disk firmware version, serial number, capacity, cache size and the current transfer mode.

 From HD Tune read and write performance, the Seagate Desktop HDD 500GB hard disk read and write speeds average 

160MB / sec or so. Where the average read speed of 163.2MB / sec; maximum read speed of 204.8MB / sec. In the write

 speed, the average write speed Seagate Desktop HDD 500GB hard drive reaches 159.1MB / sec; maximum write speed

 of 204.7MB / sec. Desktop HDD 500GB Seagate hard disk read seek time of 14 milliseconds, write seek time was 

13.4 milliseconds.

 

 

 

 

AS SSD Benchmark is a test designed specifically for SSD software. You can test out SSD sustained read and write

 performance, including 4KB small file transfer performance, and so, the results display can be divided into two

 types, one is MB / sec in the form, and the other one is in the form of IOPS. In the AS SSD test, Desktop HDD 500GB

 Seagate hard drive in sequential read and write has reached 196.57MB / s and 187.24MB / sec, between 14-19 ms 

seek time. In terms of 4KB file access, Desktop HDD 500GB Seagate hard drive is 164 IOPS random read, random 

write and 330. Its multithreaded read / write IOPS 4KB file is 292 and 215, the total score of 53 points.

 

 

 ATTO Disk Benchmark is a good and free disk benchmarking software, support for stability / burst read and

 write transfer rate test, applied to conventional hard drives, read and write performance RAID, USB flash drives,

 removable storage card products, test. I believe that many users will encounter this problem, the value is 

the hard drive products in the factory nominal speed of read and write tests than their big, in fact, that is 

the maximum number of vendors of software testing by ATTO Benchmark drawn. In the ATTO Benchmark speed tests, 

Desktop HDD 500GB Seagate hard drive maximum read speed of 206.8MB / sec; the maximum write speed of 197.7MB / sec.

 

 CrystalDiskMark is an easy-to-use hard disk performance test software, but the test project is very comprehensive,

 covering a continuous read and write, 512K and 4KB random read and write performance data packets, 

and queue depth (Queue Depth) for 4K random performance under the circumstances 32 . Queue depth description of 

the hard disk IO can simultaneously activate a maximum value, the greater the queue depth, actual performance will 

be higher, from the CrystalDiskMark test, the Seagate Desktop HDD 500GB hard disk read speed of 207.2MB / sec write

 speed reached 205.6MB / sec.

 

 Firstly PCMark7 run sub-tests and selected sub Secondary storage score score score PCMark7 as objects, 

Secondary storage score breakdown focused test performance from your computer's hard disk. Desktop HDD 500GB

 Seagate hard drive in the i7 4770K + Z87 platform as a slave in 2125 ran PCMark7 score.

 

 

 FastCopy is a small file / directory copy tool, its powerful, superior performance, to fully tap the capacity

 of the system and hard drive files, and support for counting and timing. Here use the two directory for testing: 

the first contains 12638 files total capacity of 5380MB of "Drivers" directory; the second contains 2 files total

 capacity 3620.9MB of "HDVideos" directory, move the files were investigated hard disk and its ability to handle 

a large number of small files to copy large files. By FastCopy test, we see Desktop HDD 500GB Seagate hard drive 

in a small batch file to copy the actual transfer speed of 53.2MB / sec. Copying a single large file, Seagate Desktop

 HDD 500GB hard drive transfer rate reaches 191.99MB / sec.

 

 Desktop HDD 500GB Seagate hard disk read and write speeds of around 200MB / sec, far higher than the Seagate

 Barracuda 500GB hard drive 100-130MB / sec, compared to other brands of 500GB hard drive also has an immediate

 performance advantage. The 500GB hard drive in addition to the models, Seagate it dies, the disc, the core 

components of large-scale, high-profile upgrade replacement. Including upgrades to double the storage density 

of the disk, the data have a stronger ability to dual-core main processor, 64MB cache expanded four times,

 and improve data access and other advanced precision AcuTrac hard drive technology.