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Provost
Posts: 25,518
Member Since: ‎07-17-2009
Message 1 of 2 (3,496 Views)

SATA II verses SATA III performance

[ Edited ]

If you are considering buying a PC with SATA III support or adding a SATA III (6.0) adapter and installing a SATA III hard drive then you might be interested in my experiences.

 

Environment:

DYI PC

Motherboard: ASUS P8P67 ---1155 socket

Chipset: Intel P67

Processor: Intel i7-2600k ---> standard clocking

Memory: 16 GB OCZ 1600 DDR3

SATA ports:  4 SATA III 6.0 Gb/s and 4 SATA II 3.0 Gb/s

Hard drives: Hitachi 7200 RPM 1.5 TB 64 MB cache SATA III (6.0)

SSD: OCZ Vertex 3 120 GB SATA III (6.0)

Operating system: Windows 7 Pro 64 bit

Measuring tool: HD Tune 2.55

 

Below you will observe four runs of HD Tune. Two runs were with the hard drive and SSD connected to a SATA III (6.0) ports and two runs were connected to SATA II (3.0) ports.

 

Conclusion:

  • The SATA II (3.0) interface maxs out with the Vertex 3 SSD and greatly limits the Vertex 3 performance.
  • The SATA II (3.0) interface is equal in performance to the SATA III (6.0) interface for the Hitachi hard drive.
  • The Hitachi hard drive is one of the fastest hard drives that I have used.
  • The OCZ Vertex 3 is the fastest SSD on the market today.
  • Hard drives today still have a long way to go to even get close to the maximum SATA II (3.0) interface rating.
  • An extremely fast SATA III (6.0) rated SSD is held back on a SATA II interface.

Hitachi on SATA II

HDTune_Hitachi_SATA_II.jpg

 

Hitachi on SATA III

HDTune_Hitachi_SATA_III.jpg

 

VERTEX 3 on SATA II

HDTune_OCZ-VERTEX3_SATA_II.jpg

 

VERTEX 3 on SATA III

HDTune_OCZ-VERTEX3_SATA_III.jpg

 

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Teacher
Posts: 87
Member Since: ‎12-07-2010
Message 2 of 2 (3,431 Views)

Re: SATA II verses SATA III performance

Big_Dave 

 

Thanks for sharing your experience and statistics.The performance of the VERTEX 3 on SATA III is impressive, 

 

Larry

 

 

† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the Terms of Use and Rules of Participation