A-1GB 667MHz DDR2 Non-ECC CL5 DIMM - $19
B-2GB 667MHz DDR2 Non-ECC CL5 DIMM - $35
For maximum efficiency should I purchase 2 – 1GB DIMM for a total of $38, or 1 – 2GB DIMM for $35. Note the price and speed is approximately the same. Discuss your thoughts.
Having less sticks of RAM chip on the motherboard is always preferrable since switching on to multiple chips for stored RAM data put more strain on the memory controller and data buses. It would take slightly longer for CPU to add and retrieve data from 2 sticks rather than one stick but it will not cause any significant performance difference to the user. Moreover, if you use 1 2-Gb Ram then you would have another slot vacant for future if you ever want to upgrade Ram further.
I will advise you to go for 1 2GB Ram chip. It's cheaper too.
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