Read Bandwidth / Write Performance
For this benchmark, HDTach was used. It shows the potential read speed which you are likely to experience with these hard drives. The long test was run to give a slightly more accurate picture. We don’t put much stock in Burst speed readings and thus we no longer included it. The most important number is the Average Speed number. This number will tell you what to expect from a given drive in normal, day to day operations. The higher the average the faster your entire system will seem.
The average read speed of the Seagate Barracuda 3TB is simply phenomenal. These speeds are simply in a different league than any other drive we have looked at before and this includes 10,000RPM VelociRaptors.
For this benchmark HD Tune Pro was used. To run the write benchmark on a drive, you must first remove all partitions from that drive and then and only then will it allow you to run this test. Unlike some other benchmarking utilities the HD Tune Pro writes across the full area of the drive, thus it easily shows any weakness a drive may have.
As with the sequential read speed, the sequential write performance of this new triple 1TB platter wielding drive is extremely impressive. Not only did we see a nearly 30MB/s increase in average write performance compared to the previous Barracuda XT 3TB model, the minimum write performance has also significantly increased. It was not until the last 300GB or so of space before the speed dropped below 100MB/s and even then it does not drop all that much. This allows the drive to have a nearly 90MB/s minimum write speed which is simply in a different league than any SATA hard drive we have seen, let alone used. To be blunt this drive not only starts out faster but also ends faster than anything in it class so you can fill it to full capacity and still not be disappointed with its over all performance.
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