Question 2 Ram sticks or 4

[navigation2015]

Good day I currently have an Asus ROG z790-E motherboard with 4 sticks of Kingston 64GB DDR5 ram. My question is would I get better performance with 2 sticks of 32 gb rather than having 4 16s? Seems like sometimes when I update the BIOS I get a BSOD with 4 sticks. Currently got a 13700k thanks.

 

[Dark Lord of Tech]

2 STICKS IS USUALLY BETTER AND MORE STABLE.

 

[triplex1]

Good day I currently have an Asus ROG z790-E motherboard with 4 sticks of Kingston 64GB DDR5 ram. My question is would I get better performance with 2 sticks of 32 gb rather than having 4 16s? Seems like sometimes when I update the BIOS I get a BSOD with 4 sticks. Currently got a 13700k thanks.

If the 4 sticks are Quad , you have no problem, in any other case you will run at single and not dual
I would say to put 2x32

 

[navigation2015]

Yeah I think that’s what I’m going to do order two 32’s and put them in. Thanks for the reply.

 

[geofelt]

Your motherboard runs dual channel only, regardless if 2 or 4 sticks are used.

Ram must be matched for proper operation.
Matching costs more so a 4 stick kit usually costs more and offers no performance advantage over a 2 x 32gb kit.

Are all your ram sticks from the same matched kit??
If not, there will be issues.
Often you can fix the issues by specifying the ram specs in your motherboard explicitly and increasing the ram voltage a bit.

 

[Syntaximus]

Less is more, if you can use 2x higher capacity DIMMs you will put less stress on the IMC.

 

[navigation2015]

Less is more, if you can use 2x higher capacity DIMMs you will put less stress on the IMC.

Yeah that’s why I got two 32 GB sticks on the way from Amazon. I’ll remove the 4 and install 2.

 

[navigation2015]

Your motherboard runs dual channel only, regardless if 2 or 4 sticks are used.

Ram must be matched for proper operation.
Matching costs more so a 4 stick kit usually costs more and offers no performance advantage over a 2 x 32gb kit.

Are all your ram sticks from the same matched kit??
If not, there will be issues.
Often you can fix the issues by specifying the ram specs in your motherboard explicitly and increasing the ram voltage a bit.

All ram sticks are the same matched kit.

 

[Aeacus]

I'd actually argue against using less DIMMs over more DIMMs.

It is true that more DIMMs put higher load on memory controller on MoBo, but after all, when MoBo memory controller couldn't handle running 4x DIMMs at the same time, MoBo wouldn't have 4x RAM slots to begin with.

As of why running more is better - response time (less latency).

In a 2x 32GB set, it takes CPU longer time to access data in the back end of the RAM, compared to 4x 16GB.

E.g in 2x 32GB set;
***************************data**** ***************************data**** ------>-----time in ms------->------

vs 4x 16GB set;
**********data**** **********data**** **********data**** **********data**** ------>-----time in ms------->------

And when to compare two sets of RAM;
link: https://ram.userbenchmark.com/Compa...engeance-LPX-DDR4-3000-C15-2x8GB/m43906vs3546

The 4x 4GB is a bit better than 2x 8GB. Where both are total of 16GB, DDR4, 3000 Mhz and CL15.

 

[navigation2015]

I'd actually argue against using less DIMMs over more DIMMs.

It is true that more DIMMs put higher load on memory controller on MoBo, but after all, when MoBo memory controller couldn't handle running 4x DIMMs at the same time, MoBo wouldn't have 4x RAM slots to begin with.

As of why running more is better - response time (less latency).

In a 2x 32GB set, it takes CPU longer time to access data in the back end of the RAM, compared to 4x 16GB.

E.g in 2x 32GB set;
***************************data****
***************************data****
------>-----time in ms------->------

vs 4x 16GB set;
**********data****
**********data****
**********data****
**********data****
------>-----time in ms------->------

And when to compare two sets of RAM;
link: https://ram.userbenchmark.com/Compa...engeance-LPX-DDR4-3000-C15-2x8GB/m43906vs3546

The 4x 4GB is a bit better than 2x 8GB. Where both are total of 16GB, DDR4, 3000 Mhz and

 

[navigation2015]

Installed two 32’s my system seems to be running much better

 

[Aeacus]

Installed two 32’s my system seems to be running much better

Synthetic bench would tell the exact diff.

But yes, in some systems, when MoBo has trouble running 4x DIMMs at once, 2x DIMMs are better used. This is especially true when the 4x DIMMs you have, aren't listed in MoBo memory QVL.