Reply to post: Loads on memory bus still a concern?

Do Optane's prospects look DIMM? Chip chap has questions for Intel

guyr

Loads on memory bus still a concern?

On my AMD Bulldozer era system using DDR3, DRAM speed is very sensitive to the number of loads on the memory bus. By limiting memory to only 2 of the 4 available slots, my system can maintain 1600 MHz speed. If I occupy all 4 slots with the exact same memory, speed drops to 1066 MHz on all slots.

I'm assuming the constraints with loads still holds true with NVDIMMs? I did a quick search on the topic, and couldn't find any information. Seems to lessen the appeal if adding NVDIMMs slows down the entire memory bus.

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