Solid State Hybrid Drive, which provide the storage capacity of regular HDDs, and some of the performance benefits of SSDs, have gotten a boost by Microsoft dropping the minimum requirements from 12GB of NAND to 8GB of NAND. While 8GB doesn’t like a huge amount of storage cache, Microsoft’s recent testing has found that performance issues and cache lifetime concerns are not the problems they were expecting.

With the ever expanding capabilities of Ultrabooks with single drive bays, these drives are a good compromise between an SSDs speed and HDDs capacity,

 

8 GB SSHD

16+ GB SSHD

Erratum ID

1649, 1648

1647
     

NVM cache size (GB)

>= 6 and < 12

>= 12

Seq. read (QD: 1)

90 MBps

90 MBps

Seq. write (QD: 1)

15 MBps

40 MBps

Random read (QD: 1)

8 MBps

8 MBps

Random read (QD: 8)

N/A

N/A

Random write (QD: 1)

3 MBps

3 MBps

Random write (QD: 8)

N/A

N/A