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64GB (C)UDIMMs, where are they?

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tldr; does anyone have any extra information regarding the availability of such DIMMs, or have heard anything about them actually becoming available at retail anytime soon?

So far I've been really eyeing an upgrade from my current platform (5950x + 4x32GB 3200MHz) to double up on CPU perf and RAM quantity.
My current RAM amount is sometimes lacking whenever I'm dealing with larger volumes of data in both my academic and professional scenarios. Adding to that, a 9950x on AM5 looks really sweet for that sweet AVX-512 performance, which would basically double the current single thread performance in my daily tasks, and given how most of my tasks also scale well with cores, it'd be an overall 2x perf bump along with a (hopeful) 2x memory bump.

Manufacturers have been teasing us with 64GB UDIMMs for over an year now:

Specifically, the kit mentioned above is the "Kingston Renegade KF560C36-64", but so far this product hasn't been made available anywhere.
I emailed Kingston back in Aug 2024 about their availability, and this was their answer:
1738620254766.png


They do have one CUDIMM offering listed in their website, but it doesn't seem to be available for sale anywhere:

So did Innodisk:
Reviving this topic with some nice info, innodisk has listed 64GB CUDIMMs. Now let's see how long it takes for it to be available in the market.


Crucial did announce that they would be releasing 64GB UDIMMs back at CES, but no actual availability so far as well:
Crucial DDR5 Pro Plug-and-Play Memory: For gamers, creatives and professionals
who need DDR5 performance right out of the box, Crucial DDR5 Pro Plug-and-Play
Memory easily improves system performance without the fuss of overclocking, latency
tuning, die chasing or LEDs. Filling a gap in the market, Crucial is now offering the
solution in a 64GB density with a speed of 5,600 MT/s, making it the world’s first DDR5
64GB module with a heat spreader. Users needing greater density will have the option to
purchase the solution as a 128GB kit with two 64GB modules. By offering these higher
densities, Crucial enables consumers to future-proof their systems for increasingly dataintensive games and applications as well as better multitask, handle larger files such as
for 3D modeling, graphic design, create 4K and 8K content, do real-time rendering and
more — without worrying about system slowdowns or crashes.
Crucial DDR5 UDIMM/SODIMM: Crucial is now offering its Crucial Classic DDR5
Memory in a 64GB density at the 5600 MT/s speed grade, across both UDIMM and
SODIMM form factors. Crucial® DDR5 Memory has the blazing speed and massive
bandwidth needed for the next generation of multi-core CPUs, allowing users to
multitask better, load, analyze, edit, and render faster, game with higher frame rates and
significantly reduce system lag for heavy workloads over the previous generation.

Level1Techs did do some tests using Kingston 64GB CUDIMMs on an Intel Z890 platform:
However, when asked about it, that was all information they could (understandably) provide:
Screenshot 2025-02-03 at 19.11.04.png


To give some extra context, I often travel to the US, where pricing (and availability) of components is way better than where I live. I'll be traveling there by next week, so I was hoping to grab those (along with the CPU) while in there, which would require their availability being a thing as well.

Before anyone asks why not jump into a TR/Xeon-W platform, it mostly comes down to cost. I had discussed this a bit more into detail in another thread:
Just to add some context, my plan is to buy the CPU and RAM from abroad whenever I travel (given that's it's way cheaper), which would be doable given I can just shove those into my backpack and then buy the motherboard locally in my region, due to luggage space, and also because of warranty-related constraints.
With that said, a Xeon-W would be cheaper considering an entry level CPU, however W790 here are non-existent here, sadly.

For TR, the CPU alone is pretty expensive, and while there are some mobos available here, they're double their MSRP in the US.

For some extra context, a x670e ProArt here is currently going for $660, a 9950x goes for $710 (which i can grab for less than $600 in the US), and 64GB UDIMMs won't be available here anytime soon.

A 7960X alone goes for $1.5k in the US, $2.3k here, whereas the cheapest TRX50 mobo available here goes for $2.2k. Newegg has 4x64GB RDIMMs for $1.4k (don't even look at the price for higher density setups lol)
So ~$5.1k for a 24c+256GB TR setup, whereas a 16c+256GB AM5 setup would be sub $2k. And that AM5 one would have a Zen 5 CPU instead of a Zen 4 one.

My requirements are mostly USB4 video passthrough, and x8/x8 support, that'd be it.

However the CPU itself will become outdated by then, and those HEDT platforms are not known for their generational support. I plan to grab a 9950x for that sweet AVX-512 perf, and will likely be able to upgrade to a Zen 6 version later if I so desire.
Given the amount of time I keep my systems, tricking out a platform during its mid-generation ends up cheaper in the long run than keeping an HEDT system for a bit longer and then switching to a new one, while still covering all my requirements.

And even more expensive :p

More bandwidth would be nice, but usually my cores are not really bandwidth-bound, and having to hit swap is way worse than having slower frequencies anyway.


With all of the above said, I'll bring back the question at the beginning of the topic: does anyone have any extra information regarding the availability of such DIMMs, or have heard anything about them become available at retail anytime soon?
 

ir_cow

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Crucial /Micron said by the end of the year. I should be getting a sample to review as well.

Until it shows up at my door, I will assume the press release was a paper launch.
 
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Crucial /Micron said by the end of the year. I should be getting a sample to review as well.

Until it shows up at my door, I will assume the press release was a paper launch.
End of this year? I thought it was actually becoming a thing by this month :(
Or did you mean by the end of 2024? (yes, I wanna delude myself at this point lol)
 

ir_cow

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End of this year? I thought it was actually becoming a thing by this month :(
Or did you mean by the end of 2024? (yes, I wanna delude myself at this point lol)
I don't think the press release says a month so I'll assume the date I was told is NDA. Could be tomorrow or anytime in 2025.
 
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Meanwhile I tried to do 128GBs for my wild compiles (32GBx4) on my profile system and it would not boot past ddr5... 2000. Yep. It even failed at JEDEC 4800. Won't even boot at friggin ddr5-2200.
 
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ir_cow

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Meanwhile I tried to do 128GBs for my wild compiles (32GBx4) on my profile system and it would not boot past ddr5... 2000. Yep. It even failed at JEDEC 4800. Won't even boot at friggin ddr5-3200.
That's brutal. Time to crank some CPU voltages .
 
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That's brutal. Time to crank some CPU voltages .
this is what I was running, what am I missing? Ignore its set to ddr5-6000 now, thats for my two stick config.

PXL_20241220_034239678.RAW-01.COVER.jpg

feel free to PM me if you can save the day here. Heck, I'd honestly be most greatful.
 
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I don't think the press release says a month so I'll assume the date I was told is NDA. Could be tomorrow or anytime in 2025.
Their PDF has this:
Crucial’s slate of new memory offerings will be available through crucial.com, as well as through etailers, retailers and global channel partners starting February.
Hence why I assumed it'd be a thing my this month.
Too bad the actual date you have is also under NDA, I was hoping to be able to snatch those while traveling.

Meanwhile I tried to do 128GBs for my wild compiles (32GBx4) on my profile system and it would not boot past ddr5... 2000. Yep. It even failed at JEDEC 4800. Won't even boot at friggin ddr5-2200.
Not even 3600MHz? That's the base frequency I've seen most people got their sticks defaulting to.
 
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Not even 3600MHz? That's the base frequency I've seen most people got their sticks defaulting to.
Not even 2200 my man. Makes me wonder if it isn't some gigabyte firmware thing.

I'd actually take 3600, if you can believe that.
 
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Not even 2200 my man. Makes me wonder if it isn't some gigabyte firmware thing.

I'd actually take 3600, if you can believe that.
ouch.
Maybe bumping your DDR VDD and VDDQ voltages could help it a bit. Or trying to set some 3600MHz stock profile with 2 sticks, then adding the other 2 after that.

I'll just cc @Sarajiel since they seem to have managed quite some setups with such density.
 
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Meanwhile I tried to do 128GBs for my wild compiles (32GBx4) on my profile system and it would not boot past ddr5... 2000. Yep. It even failed at JEDEC 4800. Won't even boot at friggin ddr5-2200.
Now I'm curious how low can the IMC go. I didn't expect it to be able to drop to 2000.
 

ir_cow

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@R-T-B CPU_VDDIO_MEM to 1.45V. is it safe? Probably not but it will boot 4800.
 
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tldr; does anyone have any extra information regarding the availability of such DIMMs, or have heard anything about them actually becoming available at retail anytime soon?
Geizhals.eu finds another Kingston module at German retailers. They either have stock or a palatable price but none of them has both.


Amazon.de has it on stock, and amazon.fr too. You may want to check if the mothership has it too.
 
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