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Other Hardware and Peripherals Other Apple systems and peripherals discussions including the Apple Watch.

RAM Speed

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webbywebber's Avatar
Member Since: Jul 26, 2006
Location: Canada's Capital
Posts: 39
webbywebber will become famous soon enough
Mac Specs: 2.0ghz White MacBook, 1gb RAM, superdrive, 22in trinitron external monitor, 60gb internal, 300gb ext

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Hi there, this is a question about RAM for my mac book but it's a general ram question, so i thought it belonged here
I'm looking at memory for my macbook and on they had 2 types of RAM and the only differences seemed to be the speed.
one is DDR 667 with a CAS Latency of 5
one is DDR 533 with a CAS Latency of 4

from what i've been able to understand the first one would handle muiltiple bits faster, while the second will access the first bit of a job faster, then the successive bits will be slower.

so, which one is more likely to make an overall difference performance of my macbook (2ghz model)

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