dual rank or single rank

[gary_murphy101]

about to purchase 16gb ddr 2666mhz off amazon but it has the same item twice=2x8gb ddr4 but one is dual rank and the other single. there is a 2 pound price difference. building a gaming pc.
Ballistix Sport LT 16GB Kit (8GBx2) DDR4 2666 MT/s is the kit

 

[mrmez]

RAM works best in pairs.

 

[Deleted member 217926]

Dual rank is faster. For that small a price difference it's worth it.

 

[Deleted member 217926]

MERGED QUESTION
Question from gary_murphy101 : "which ram would be best for gaming paired with a i5 8400"

Ballistix Sport LT 16GB Kit (8GBx2) DDR4 2666 MT/s vs Crucial 16GB Kit (8GBx2) DDR4 2400 MT/s the first has a cover on a looks nice and the cruicial kit is 10 pound cheaper and it is a bare kit ?

 

[Deleted member 217926]

MERGED QUESTION
Question from gary_murphy101 : "8400 minimum memory frequency"

can i used 16gb ddr4 2400mhz with the i5 8400. or has the minimum frequency got to be 2666mhz and higher ?. if so would this be suitable : Ballistix Sport LT 16GB Kit (8GBx2) DDR4 2666 MT/s ?

Yes you can use DDR4 2400 or 2133. Any DDR4 RAM you install will likely default to 2133. So you would want to boot to bios and enable XMP for it to run at the tested/advertised speed.

Yes you can use DDR4 2400 or 2133. Any DDR4 RAM you install will likely default to 2133. So you would want to boot to bios and enable XMP for it to run at the tested/advertised speed.

. thanks for the quick responce. will 2666mhz have much advantage over 2400mhz as there is a 10 pound difference ?

There are lots of benchmark comparison videos out there to show the difference. For the most part you wouldn't notice if you got one or the other, but there can be a difference.

See - https://www.youtube.com/watch?v=e9HyMEgoSoc

There are lots of benchmark comparison videos out there to show the difference. For the most part you wouldn't notice if you got one or the other, but there can be a difference.

See - https://www.youtube.com/watch?v=e9HyMEgoSoc

do you know the differnce between dual and single ram as im about the buy
Ballistix Sport LT 16GB Kit (8GBx2) DDR4 2666 MT/s of amazon but it has 2 listing 2x8gb ddr4 2666mhz but 1 os dual and the other is single rank

Get dual sticks 2x8GB so you can run in dual-channel. Just as much or more performance is gained from dual-channel instead of single-channel.

 

[Deleted member 217926]

Please don't create multiple threads asking the same thing.

 

[volkgren]

Buy the dual rank 2666. In all my experience buying and building I've regretted not buying the better of two options on at least a few occasions. If you regret paying too much for something you gain money again. If you regret buying slower hardware, you are stuck with slower hardware.

 

[gary_murphy101]

thanks guys its 2 identical kits of 2x8gb but one says dual rank and one says single. the single is the more expensive but i take from what you guys say that dual rank would be best

 

[bignastyid]

Memory ranks rarely matter anymore. There are a few memory controller that can only accept so many. So say you had a board with 4 dimm slots but the MC could only accept a total of 4 ranks to populate all 4 dimms you would have to use 4 single ranked dimms as 4x1=4. If you used dual ranked dimms you'd only be able to use 2 as 2x2=4.

As far as performance *edit* it depends on the cpu. Some seem to be confusing singe channel and dual channel which is a different beast altogether.

 

[Deleted member 217926]

Seems to matter with Ryzen.

https://www.reddit.com/r/Amd/comments/62vp2g/clearing_up_any_samsung_bdie_confusion_eg_on/

" Do note that Dual Rank RAM is faster than Single Rank. E.g. 2933 MHz Dual Rank is faster than 3200 MHz Single Rank. Single/Dual Rank is not to be confused with Single/Dual Channel (Dual Channel is always better)."