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However, in NTFS file system Barracuda 7200.7 Serial ATA managed to regain their credibility. Again we see that the controller or/and the HDD are optimized for professional file system.

Now let’s pass over to the tastiest bit: to actual copying. We will start with copying the files within one partition.

As we have expected, Serial ATA HDDs managed to use their  trump: more efficient lazy write algorithms. However, Barracuda 7200.7 Serial ATA is not that immensely ahead here, while the larger cache-buffer of Barracuda 7200.7 Plus ensured an almost 30% copy speed boost. Despite the lower physical speed, Barracuda Serial ATA V easily outperformed Barracuda 7200.7 with a 2MB buffer.

During file copying into another partition, the data seek speed becomes more important that is why the advantage of Barracuda Serial ATA grows bigger. However, this success is nothing compared with the results obtained by HDDs with larger buffer. This time the copy speed of HDDs with 8MB buffer grew 50% higher!

If you remember, the results of Intel IOMeter tests showed that the results of Barracuda 7200.7 are not always better than those of Barracuda ATA V. In some cases the Barracuda Serial ATA drive got slightly ahead of Barracuda 7200.7 Serial ATA despite the faster read/write speeds and heads positioning speed of the latter. Therefore, I dare conclude that Barracuda 7200.7 didn’t acquire any of the firmware enhancements made to the Barracuda ATA V during the product “fine tuning” stage.

This is probably the reason why the newcomer didn’t manage to significantly outperform the predecessor in some real tasks, such as copying, for instance. I sincerely hope that the situation can be improved on the software level by reflashing the firmware version. By the way, ATA Barracuda 7200.7 models achieved the best results with firmware version 3.06. firmware version 3.54 also proved very efficient.

 
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