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Afro1989

macrumors 6502a
Original poster
Dec 16, 2005
612
1
Okay, say I wanted to add more memory to the new iMac G5 Intel. What's the difference between these two because they're both $100 to add:

1GB 667 DDR2 SDRAM - 2X512

and

1GB 667 DDR2 SDRAM - 1X1GB

What's the point in them doing that and which one make more sense to add on? :confused: Thanks so much.
 

robbieduncan

Moderator emeritus
Jul 24, 2002
25,611
893
Harrogate
The first is 2 512Mb sticks for a total 1024Mb which requires 2 free RAM slots. The second is a single 1024Mb stick and requires a single slot.

The iMac only has 2 slots.

Basically it's all about future expandability vs speed now. The single stick offers a free slot for the future, but 2 matched sticks run in dual channel mode which offers more memory bandwidth.
 
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