SiSoft Sandra 2010 - HDD Read and Write tests	Source: Sandra

Sandra is designed to test the theoretical power of a complete system as well as the individual components. The results are also purely theoretical and may not represent real world performance. Higher points are better.

SiSoft Sandra 2010 - Hard Drive Read Tests Read Drive Index: Points Ranking Western Digital 1TB WD1001FALS HDD 80.13 Western Digital 1TB WD1001FALS HDD (RAID 0) 147.83 Western Digital 1TB WD1001FALS HDD (RAID 1) 147.83 OCZ Vertex 2 128GB SSD 253.65 Plextor PX-128M1S SSD 87.5 Seagate 2TB Barracuda XT HDD 101.48 Seagate 500GB Momentus XT SSHD 84.53 Read Random Access Time: (ms) Points Ranking Western Digital 1TB WD1001FALS HDD 4 Western Digital 1TB WD1001FALS HDD (RAID 0) 1 Western Digital 1TB WD1001FALS HDD (RAID 1) 1 OCZ Vertex 2 128GB SSD 0.55 Plextor PX-128M1S SSD 0.55 Seagate 2TB Barracuda XT HDD 5.77 Seagate 500GB Momentus XT SSHD 17.78

When it comes to read performance in Sandra, the 500GB Seagate Momentus XT posts a result of 84.53MB/s. This synthetic test does not take advantage of the hybrid drive's Adaptive Memory, which is why there is a discrepancy between the SSHD and SSD read performance. Random Access Time is a relatively slow 17.78ms.