Zen 3: 4x8 GiB single rank vs 2x16 GiB single rank

[fritzmg]

For my new Ryzen Zen 3 system I am set on buying Crucial Ballistix RGB white DDR4-3600 CL16-18-18-38 DIMMs, with 32 GiB in total (if I can find them in stock -_-). However since the 16 GiB sticks (BL16G36C16U4WL) are reportedly now always single rank (since they use 2 GiB Micron chips rather than 1 GiB ones) I was wondering whether it is actually better to use 4x8 GiB instead of 2x16 GiB in this case for Zen 3. As this would give you 4x single rank, i.e. 256 bit bandwidth in total, compared to 2x single rank with 128 bit in total (assuming I am correct here).

 

I am leaning towards 4x8 GiB - as this would also look nicer RGB-wise - though I think the performance difference might still be just negligible and come may be at the cost of other troubles due to having 4 sticks instead of 2 (i.e. 2 more points of failure, sort of).

[boggy77]

yes, go for dual rank (4x8)