Any perceived benefits to 24gb modules?

Defy Belief · 28 Nov 2023 at 16:12

Was looking around at different Ddr5 modules as I'm imminently due to receive my 7900x3d and might want some slightly better ram (even if minimal difference in performance but hey ho)

I came accross some corsair vengeance in 24gb modules, first I've seen of this as I've clearly been out of the loop for a while..

Are there any benefits to sizes of modules? I've currently got 2*16gb 6000mhz cl36 ram so it's not bad stuff currently. But interested to know if this is just simply a half way house between 32 and 64gb or is there any benefits to module sizing for Ddr5?

Tetras · 28 Nov 2023 at 16:50

The biggest benefit isn't 24GB, but 48GB, since it expands capacity for 4x dual rank modules to 192GB instead of 128GB. I wouldn't bother changing your RAM, X3D doesn't really care, unlike the non-X3D.

Meddling-Monk · 28 Nov 2023 at 16:56

Something else in relation. 128GB DDR5 (via 32GB x 4) is a lot more flakey to get going than 196GB (via 48GB x 4) which has sets that have been validated so it can run above the base speeds of 3600MT with the Ryzen 7000 series.

Defy Belief · 28 Nov 2023 at 17:43

Tetras said:
The biggest benefit isn't 24GB, but 48GB, since it expands capacity for 4x dual rank modules to 192GB instead of 128GB. I wouldn't bother changing your RAM, X3D doesn't really care, unlike the non-X3D.

Interesting, I blindly thought x3d might make more use of better ram

Mcnumpty2323 · 28 Nov 2023 at 19:00

yeah one of those things where
may be better waiting a while since theres plenty people
still having issues especially if using 4 modules
or they get it to work but have to lower ram speed a fair bit
since youve been getting by with "only" 32GB so far
kind of suggests youre not doing stuff that requires massive amounts
of ram
otherwise would probably have a workstation platform
but in future yeah it will be nice to be able to use huge amounts of ram
without needing the cost of workstation hardware
though i guess the majority of people dont need more than 32GB maybe64GB
for what they do

Fatpizza · 29 Nov 2023 at 08:30

The benefits for me was that 24GB modules are rated for the same speeds as 16GB modules. And 32GB of RAM just wasn't quite enough for some processes I wanted to run.

FredFlint · 17 Dec 2023 at 16:41

Apparently, the 24/48GB sticks put less stress on the memory controller compared to the 16/32 GB sticks at the same frequency. Don’t know why or if it’s true.

JollyJamma · 18 Dec 2023 at 08:52

FredFlint said:
Apparently, the 24/48GB sticks put less stress on the memory controller compared to the 16/32 GB sticks at the same frequency. Don’t know why or if it’s true.

I have heard the same.

You should be able to overclock better with the 24gig modules.

Tetras · 18 Dec 2023 at 11:19

FredFlint said:
Apparently, the 24/48GB sticks put less stress on the memory controller compared to the 16/32 GB sticks at the same frequency. Don’t know why or if it’s true.

24GB versus 32GB would, because they're single rank versus dual rank, I don't know why 16GB versus 24GB would be different though, maybe because of the memory chips.

Meddling-Monk · 18 Dec 2023 at 14:26

Tetras said:
24GB versus 32GB would, because they're single rank versus dual rank, I don't know why 16GB versus 24GB would be different though, maybe because of the memory chips.

That's pretty much it.

However, there is some good news for those wanting bigger amounts of RAM. It appears that there's been some minor breakthroughs and it now appears that it is possible to have 32GB single chips (from Micron/Crucial, through another manufacturer). So 128GB full speed should be available soon. And for those wanting 256GB, dual rank sticks should be available up ahead soon as well (Hopefully these get tested and validated on 4x for full speed and full capacity).