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Dell Precision 470 / 670 workstation - Snow Leopard/Lion/Mountain Lion/Mavericks/Yosemite

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Just fitted one of those in the PCIe x8 (operates at x4 max) slot. Great cheap PCIe add-on card for this older SATA-I/PCIe 1.0 workstation. PCIe x4 may be a must for maximum/SATA-III performance.

 

Made some quick performance comparisons with the BlackMagic app in Mav 10.9.5 and Yos 10.10.5:

 

SSD off the integrated ICH5 SATA-I (150MB/s) non-AHCI controller (no Trim)

  • Read: 132MB/s
  • Write: 127MB/s

 

SSD off the PCIe x1 (v1.0, i.e. 250MB/s) Marvell SATA-III (600MB/s) AHCI controller (Trim enabled)

  • Read: 215MB/s
  • Write: 145MB/s

 

Looking forward to try out a PCIe x4 controller now.

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