What is the difference between DDR3 1066 and 1067 memory?

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Level 1

11 points

What is the difference between DDR3 1066 and 1067 memory?

I want to upgrade to 8GB memory. My MBP has 4GB of DDR3 1067 and I see mostly 1066 memory out there. Is this a significant difference? I assume so, but have no idea.

What do you suggest?

Macbook Pro Unibody 17" 2.93Mghz, Mac OS X (10.5.7), 4GB RAM 300GB Hard Drive

Posted on Jul 29, 2009 4:49 PM

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Answer 1

Kappy

Level 10

362,183 points

Jul 29, 2009 5:35 PM in response to vcyman

As long as the memory specifications conform to those specified for your computer there should not be any problem. The labeling of speed as 1067 or 1066 is not relevant as long as it's DDR3, 204-pin, SDRAM.

Buy from a reputable dealer with a good return policy. I have used memory from Data Mem for 20 years. Others here have recommended OWC.

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Answer 2

carl wolf

Level 6

14,631 points

Jul 29, 2009 6:12 PM in response to vcyman

"Is this a significant difference? I assume so, but have no idea."

The specified memory clock speed is not exactly 1066mHz, and evidently some vendors are rounding the specified clock speed up, to 1067mHz. There is no difference.

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