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single channel ddr3 vs dual channel ddr3
I've got two 10 year old laptops and I'm upgrading the memory to 8GB. On Speccy it's currently reporting the RAM as
HP: DDR3 Single channel PC3-12800, 2 slots both used
Toshiba: DDR3 Dual channel PC3-10700 2 slots one used
I'm confused so please correct me if I am making the correct assertions below. BTW I'm buying the ram secondhand off of Ebay and not buying from e.g. Crucial as too expensive otherwise I would use their memory wizard and be done:
ASSERTIONS:
- The HP has a single channel memory architecture on the MB but the Toshiba has dual channel architecture on it's MB.
- Any DDR3 SODIMM will work so I could use PC3-12800 on either laptop using a 2 x 4GB config.
- Dual and single channel refers to the MB design and not the physical structure of the memory sticks. But if the memory sticks are labelled dual channel it means that they are designed to work with second paired memory stick in the appropriate channel.
Many thanks for any help in setting me straight if reqd :)