9800x3d max ram speeds?

[76561199793899658]

what would be the max mhz ram speeds on the best motherboard for it atm.
-
with 4 dimms and with 2 dimms?

and how much performance you loose by going 4 dimms?

I currently have an x99 system with 8x16gb ddr4.
I kind of like to double the specs every new pc..
-
so 256gb ram.

as the old intel enthousiast x-platforn is kind of dead.. and treadripper is more of a modern xeon than a replacement for that old enthousiast series that used to sit in between servers and mainstream..

the days of 4 lanes for ram (and having 8 ramslots) in a gaming pc are kind of over.

was the 6950x at 1600 euro at least a 10% faster than the 500 euro mainsteam cpu
plus you did get stuff like usb 3.2, m.2 and ddr4 one or two generations before maibstream got it.
and you got more than double the lanes in the days of sli essential.

thats not today.

so the only way to get 256gb ram is by having 4x64gb now. (or at least 4x48gb as it remains to be seen if any 64gb modules are to be released at all as non ecc)

but well that does need all 4 ramslots as just using 2 would give me 96gb ram which is less than my old pc had and not acceptable..

so.. what is the neth fps loss by going 192gb (4x48gb) vs 96gb (2x48gb) and at what mhz could each of these kits be expected to run?

[Tonepoet]

I can maybe understand future proofing the quantity a little, but not anywhere near the extent that you're planning.

P.C. building 101 is that excess R.A.M. doesn't boost system perf. in the least and even a total R.A.M. hog game like Hogwarts Legacy doesn't use much more than 22 gigs[www.techspot.com]. Even just half the amount of R.A.M. you have now is well beyond overkill for any gaming rig, enthusiast or otherwise. There was never, ever a game that came even close to consuming 128 gigs. of R.A.M., unless maybe you forced the issue by running it off of a R.A.M. disc or something like that.

[Bad 💀 Motha]

Unless you're using heavy VMs or multiple VMs or heavy demanding work apps; 32GB of total RAM is still perfectly fine. Plus with 2x 16GB you usually will have room for more later if really feel the need, since most Motherboards would provide 4x DIMM slots.

Now if you do happen to have a couple games you play often that can actually use 16GB+ RAM by itself, then maybe you could go with 2x 32GB or even 2x 48GB and you should then be good for the life of that PC in most scenarios.

If you feel the need to use RAM Disk; then yes you very well may want to use 96GB or more of RAM.

[A&A]

llama 3.1 405B model will eat 256GB very quickly.

It's also important to note that the techspot results are using total system consumption, but what Windows is doing with RAM, because it doesn't seem to have disabled all the super, pre, ala bala fetching stuff, when idle it's using 4.5GB and tested on a machine with 64 GB without limiting the access via MS config. For sure 16GB is at the edge.

[76561199793899658]

Originally posted by Bad 💀 Motha:

Unless you're using heavy VMs or multiple VMs or heavy demanding work apps; 32GB of total RAM is still perfectly fine. Plus with 2x 16GB you usually will have room for more later if really feel the need, since most Motherboards would provide 4x DIMM slots.

Now if you do happen to have a couple games you play often that can actually use 16GB+ RAM by itself, then maybe you could go with 2x 32GB or even 2x 48GB and you should then be good for the life of that PC in most scenarios.

If you feel the need to use RAM Disk; then yes you very well may want to use 96GB or more of RAM.

my old pc from 2016 already has 128gb ddr4.
the one before that had 64gb ddr3 ram.. and
my even older pc from 2009 already had 48gb ddr3 ram...

I like to double most things more ore less each update.. that includes nemory size.
so 256gb this round.

especially since : have a 1600 euro cpu nobody bat an eye.. an 2500 euro monitor nope.. an 3500 sli gpu setup again nobody impressed..
but saying I had 128gb ram.. (at which the reply was : no not your harddrive.. your tam.. ) and people totally lost their marbles.. overkill ram is the best bragging thing as nothing else impressed people quite like it;)

plus well having all the banks filled just looks nicer.

[76561199793899658]

but thats not the question I asked I not want any debate about "how much ram you do need"

what I do want to know is :

9800x3d
max ram mhz 2 dimms
max ram mhz 4 dimms.

and how much fps the gap in performance between the two will cost you.

[r.linder]

There's a small difference in how high you can go on 4 slot boards with 2 modules because of EMI from the empty slots, but it's still pretty much moot unless you're actually going for the maximum supported frequency which is difficult to run stable regardless

Should just be 2x16 or 2x32 6000 CL30 and left forgotten about, people have tried 4x16 and 4x32 of the same spec and struggled with constant POST issues or BSODs that were solved by running just 2 DIMMs

People need to stop worrying about the 2 extra frames per second they're going to get and focus on making sure their system is actually stable

[Ontrix_Kitsune]

Originally posted by Outcast82:

what I do want to know is :

9800x3d
max ram mhz 2 dimms
max ram mhz 4 dimms.

This was already answered on the first page for you. Go find the website for who makes your motherboard, the support section, and go read the qualified memory list. This will tell you the maximum Mhz your motherboard can run in ram when you populate either 2 slots or 4 slots.

Do note a "rule of thumb" though: The capacity determines what speed you can run. If you want the maximum possible speed (like 8000 - 8400 Mhz) you will typically be restricted to 2 x 12GB or 2 x 16GB. As you change to a configuration like 2 x 32GB, you will have to use slower ram. If you want to use 2 x 48 GB, slower ram still.

If you want to use 4 x 12 GB you would have to refer to the list but it will typically be around 7400 Mhz for most motherboards.

[Ontrix_Kitsune]

Originally posted by r.linder:

People need to stop worrying about the 2 extra frames per second they're going to get and focus on making sure their system is actually stable

I already told you it's a lot more than just 2 FPS gain from faster ram. Also: If people adhere to the QVL list it will guarantee stability. If people buy the right ram kit for their motherboard there is zero risk of instability.

You're just fearmongering and trying to scare people at this point.

[_I_]

qvl is pointless, there are so many dimms/kits the mobo mfgs cannot possibly test them all
and the list would be non existent if they only listed dimms that failed

[r.linder]

Originally posted by Ontrix_Kitsune:

Originally posted by r.linder:

People need to stop worrying about the 2 extra frames per second they're going to get and focus on making sure their system is actually stable

I already told you it's a lot more than just 2 FPS gain from faster ram. Also: If people adhere to the QVL list it will guarantee stability. If people buy the right ram kit for their motherboard there is zero risk of instability.

You're just fearmongering and trying to scare people at this point.

You have no clue what you're talking about, you can't guarantee that and you're setting people up for failure. QVL does not guarantee stability, it is merely what the motherboard manufacturer has tested and validated as bootable in the factory, doesn't mean it's going to work with every single configuration that uses the same motherboard and RAM kit. I've used kits on QVL before with AMD and Intel configurations alike and there was still instability issues, so I know for a fact that's a bunch of BS.

Still waiting for the actual proof I asked from you hours ago. I've seen benchmarks using much faster RAM with that CPU than 6000 and the difference wasn't even worth the price, it's nowhere near 20% in the majority of scenarios. You're arguing over a few frames.

[Bad 💀 Motha]

We are so past the days of when what RAM you use makes any differences in game performance. There is basically zero differences in games when it comes to RAM; what will matter is you have well beyond enough RAM. Paying more for DDR5 above 6000 or so is fairly pointless. It might serve a purpose, but gaming is not one of those things. Having faster timings (lower) will matter more then the bandwidth speed for a majority of tasks.

[C1REX]

Originally posted by Ontrix_Kitsune:

Originally posted by r.linder:

You have no clue what you're talking about, you can't guarantee that and you're setting people up for failure. QVL does not guarantee stability

Yes it does.

Only from the motherboard side, but not from the memory controller side on the CPU. If the memory operates above 5600 MT/s, it's not guaranteed by AMD that a Ryzen 9000 CPU can handle higher speeds. Ryzen 7000 officially supports up to 5200MT/s. It's a matter of the silicon lottery here. It usually can, but it may not, as 6000 MT/s with CL30 is technically not within specs.

My motherboard supports 8000 MT/s memory, but I doubt even 50% of Ryzen 7000 CPUs can remain stable at such settings, and I would be concerned about the increased voltage on the memory controller.

[76561199793899658]

well this ♥♥♥♥♥♥♥♥ just did not use to excist before.. not even with xmp.
if you motherboard supported 3200mhz it did so with 8 dimms just as well as with 1.

but what you say is :

*use the specific motherboard list.
(usually listed as
1 dimm 1 lanes
2 dimms 2 lanes
4 dimms 2 lanes )
-
so no longer it lists one speed it supports but 3.. one for each config.
**and you say this WILL always 100% work.

still does not answer how large the gap is.. on general or what it translates to in actual fps..

just go look it up on motherboard manufacturer? that ♥♥♥♥ aint on the webstores search options.. so you will one by one have to look that up for 100dres of motherboards.. an awfull amount of work...

if i presume the earlier answer that stated 4x will run 4800mhz while 2x will run 6000mhz..
-that what does that with 4x48gb or 2x48gb dimms in practice translate to in loss of fps..

and ofcourse I know the real speed of ram = mhz / cl
also named : true latency.
thus you want to buy what has the lowest true latency ram thats npt to fast to run on your system.

it be stupid to buy 6000mhz ram than run it 4800mhz..
instead you would buy 4800mhz ram that has same true latency as that 6000mhz ram aka that has lower timings to make up for the lower mhz.
so before buying ram you need to know what will work.

as for people claiming 16gb dimms work faster than 48gb dimms..
sound bogus.
sure you can buy 16gb dimms at higher speeds than 48gb dimms.
but if your motherboard/cpu aint runninh it that be mute.

and everybody keeps saying amd never ever will run over 6000mhz.. 6400mhz if very very lucky..
-
8000mhz + amd cpu thus : never ever??

[A&A]

Originally posted by Ontrix_Kitsune:

I bet you don't even understand the concept of 1:1 infinity fabric clock matching on AMD either.

lol, bringing up the concept of matching, which is already somewhat dead in the Ryzen 7000 and 9000.
if infinite fabric+mc+ram matches 2000 or 2200MHz, that's worse than what it was with previous ZENs.
With the current ZEN 4 and 5 a single ccd has a transfer rate of 48B/cycle and the mc only has 32B/cycle. Major disuse of the pipeline. It's true that there is I/O that has 64B/cycle and is just used by other components SSD, GPU, network cards so on that can certainly use the rest of the pipeline, but the system is inflexible given the overall performance. What happens if I just run something like y-cruncher? Nobody cares about the I/O part.

[A&A]

Originally posted by Outcast82:

if i presume the earlier answer that stated 4x will run 4800mhz while 2x will run 6000mhz..
-that what does that with 4x48gb or 2x48gb dimms in practice translate to in loss of fps..

and ofcourse I know the real speed of ram = mhz / cl
also named : true latency.
thus you want to buy what has the lowest true latency ram thats npt to fast to run on your system.

it be stupid to buy 6000mhz ram than run it 4800mhz..
instead you would buy 4800mhz ram that has same true latency as that 6000mhz ram aka that has lower timings to make up for the lower mhz.
so before buying ram you need to know what will work.

8000mhz + amd cpu thus : never ever??

The point is you want the highest capacity and fastest RAM.
Take MHz as the resolution of your screen. The bigger it is, the more precise it is. Then you have timings. These dictate the order of all operations in the RAM chips.
You may remember that there were DDR4 RAM kits that were clocked at 3600 MHz CL14. What the XMP is doesn't matter at this point. What matters is what is inside the dimm. In this case it's a Samsung B die, which if you want then you can manually make it run at 4000MHz+ with adjusted timings on its own.
It's the same story with DDR5.

4 dimms 8000MHz is a big NO.

So I can only suggest to look for 6000MHz RAM with a possibility to has a second XMP for 5600MHz if the system is unstable.