Seagate Seven 500 GB External HDD Review
CrystalDiskMark
Contents
CrystalDiskMark 3 is a disk drive benchmarking program that measures the write and read speed in different block sizes. We compared the results in sequential read and write, and in 512 kiB and 4 kiB block sizes read and write. We configured it for five repetitions of each test of 1 GB of random data.

On the sequential read benchmark, the Seagate Seven was 6.6% slower than the Toshiba drive connected to the USB 3.0 port.

Also on the sequential write test, the Seagate Seven was 6.6% slower than the Toshiba drive.

On the random read benchmark with 512 kiB blocks, both drives has similar performance.

On the other hand, on the random write test with 512 kiB blocks, the Seagate Seven was 30% faster than the Toshiba drive connected to a USB 3.0 port.

On the random read test with 4 kiB blocks, the Seagate Seven was 5.9% slower than the Toshiba drive.

On the random write test with 4 kiB blocks, the Seagate Seven was 30% slower than the Toshiba drive connected to the USB 3.0 port.
