Test values with CrystalDiskMark 3.0.2 (each with Windows 7 SP1):
SSD (128GB Crucial m4 SSD)
Sequential Read: 89 898 MB / s
Sequential Write: 77 926 MB / s
Random Read 512KB: 85 264 MB / s
512KB Random Write: 79,021 MB / s
4KB Random Read (QD = 1): 18 765 MB / s [4581.3 IOPS]
Random Write 4KB (QD = 1): 30 669 MB / s [7487.6 IOPS]
4KB Random Read (QD = 32): 21,118 MB / s [5155.8 IOPS]
Random Write 4KB (QD = 32): 41 664 MB / s [10171.8 IOPS]
previously used in the comparison,
HDD (Seagate ST9160821A)
Sequential Read: 41,833 MB / s
Sequential Write: 35,834 MB / s
Random Read 512KB: 23,662 MB / s
512KB Random Write: 24,496 MB / s
4KB Random Read (QD = 1): 0.440 MB / s [107.4 IOPS]
Random Write 4KB (QD = 1): 0.609 MB / s [148.7 IOPS]
4KB Random Read (QD = 32): 0.543 MB / s [132.5 IOPS]
Random Write 4KB (QD = 32): 0.588 MB / s [143.7 IOPS]