2x16GB or 4x8GB Sticks in MSI MAG B550 Tomahawk

[Cutter1500]

I want to build a PC in which I need 32GB of RAM and im unsure about wether or not I should use 4 Sticks of 8GB or 2 Sticks of 16GB RAM. The Description of the Mainboards states something about being Dual-Channel, so does that mean that 2 Sticks of 16GB would be better?

 

The RAM in Question is: G.Skill RipJaws V DDR4-4000 DIMM CL18

[GuiltySpark_]

General rule of thumb is less sticks the better for two reasons. Its less stress on the CPU's IMC to run two sticks at XMP speeds and you have two slots open for future expansion.

[xg32]

if you have the choice of both get 2x16, unless the sticks are single ranked (2x16 are mostly duo but not 100%)

 

2x16 will oc better

[freeagent]

If the 2x 16GB sticks are single ranked, then the 4x8 will perform better at the same clocks.  It seems single CCD chips have a harder time pushing 4 sticks, whereas dual CCD chips don't have a problem with it. Overclocking is luck of the draw.  Overclocking 2 dual ranked sticks would be similar to overclocking 4 single ranked sticks.. so that load you speak of does not change.. until you move to a dual CCD chip.

 

An example I can give:

 

I have a 5600X that is stable at 2000 FCLK 1:1 with 2 single ranked sticks. With 4 single ranked sticks that drops down to 1833 1:1. My 5900X can run 2 sticks up to 1900 FCLK no problem, but turns into a WHEA generator at anything over 1900.  But it will bench at 2K. It will run 4 sticks up to 1900 as easily as it will run 2  sticks, but still cant go past 1900.. It wont even post at 1933 with 4 sticks

 

Could be my board too I suppose.. 

[--SID--]

40 minutes ago, Cutter1500 said:

I want to build a PC in which I need 32GB of RAM

What CPU and motherboard?

[Cutter1500]

7 hours ago, --SID-- said:

What CPU and motherboard?

CPU: Ryzen 7 5800x
Motherboard: MSI MAG B550 Tomahawk
The topic has been solved for me though, since all the other comments seem to agree that 2 Sticks of 16GB RAM each are better.