You would think it would make some kind of difference...

  • 1
    It will be interesting if anyone has actually done a measurement to show that this controller is faster or slower than SO-DIMM. I would expect the opposite - no measurable difference with only the CPU/memory controller/cache and RAM speed itself making any difference.
    – bmike
    Dec 3, 2012 at 17:23

2 Answers 2


Not really. Access times might be faster by a handful of picoseconds, since the electrical impulses would travel a slightly shorter distance by taking away the circuitry in the socket. However that distance is dwarfed by the variance in placement of the RAM on the logic board — sometimes it's closer to the CPU, sometimes farther away.

The predominant factors for speed of RAM are the clock speed and bit width, not the physical layout.


Faster, probably not. Otherwise the difference is twofold, IMO.

  • With no physical RAM slots, they can more closely integrate the components to save on space and make a thinner machine.
  • From a commercial perspective, you have to pay up-front for more RAM, as you cannot add more later on (you have to buy a new computer).

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .