At your service:
# seeker /dev/sda # WD HDD
Seeker v3.0, 2009-06-17, http://www.linuxinsight.com/how_fast_is_your_disk.html
Benchmarking /dev/sda [976773168 blocks, 500107862016 bytes, 465 GB, 476940 MB, 500 GiB, 500107 MiB]
[512 logical sector size, 512 physical sector size]
[1 threads]
Wait 30 seconds..............................
Results: 65 seeks/second, 15.167 ms random access time (494788712 < offsets < 500089695212)
# seeker /dev/sdb # Intel SSD
Seeker v3.0, 2009-06-17, http://www.linuxinsight.com/how_fast_is_your_disk.html
Benchmarking /dev/sdb [78165360 blocks, 40020664320 bytes, 37 GB, 38166 MB, 40 GiB, 40020 MiB]
[512 logical sector size, 512 physical sector size]
[1 threads]
Wait 30 seconds..............................
Results: 8523 seeks/second, 0.117 ms random access time (409415 < offsets < 40020646597)