1 GB. Note that there is no such thing as dual channel memory, although computer stores may sell it as that. The dual channel feature is a function of the memory controller. You need two matching memory modules in order for dual channel to work.
Obviously the difference is speed.
speed?maybe.but more likely the spelling.."DDR2" has no"SDRAM PC2 133 168pin" unlike the"DDR2 SDRAM PC2 133 168pin"It's really hard to see it at a first glance..
2 dimm 2gb RAM comes with 2 1gb modules. 4 dimm 2gb RAM comes with 4 512mb modules.
about 42 farts
DDR2 SDRAM modules are available single sided and double sided.
You're computer will require a "DDR2 SDRAM DIMM". DDR2 SDRAM is the type of memory you are after, it is also a DIMM. Most modern memory are all DIMM's (Dual inline memory module), much older ram were SIMMS (single ingline memory module). DIMM refers more to the physical make up of the module (DIMMS have contacts on both sides of the module). So any DDR2 SDRAM that you buy IS a dimm. You may want to look at the wikipedia page about DDR2 SDRAM at http://en.wikipedia.org/wiki/DDR2_SDRAM
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The Toshiba 1 GB DDR2 SDRAM works on laptops and desktops.
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Dual-channel architecture requires a dual-channel-capable motherboard and two or more DDR, DDR2 SDRAM, or DDR3 SDRAM memory modules. The memory modules are installed into matching banks, which are usually color-coded on the motherboard.
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