News TeamGroup rolls out CUDIMMs up to DDR5-9600 for Intel Arrow Lake CPUs — clock driver enables massive overclocking

Another announcement that isn't particularly meaningful since they don't have dates either. So far none of the CUDIMM announcements have given time frames (Adata did say Q4, but we're already there and it's through the end of the year so minimally useful). Corsair, Kingston and G.Skill haven't made announcements at all for their products.

It's unfortunate that the timing on CUDIMMs hasn't really worked out for the ARL launch. It sounds like Asus was sending out some with review kits, but I haven't seen anything with regards to Intel. At least we'll have an idea of expected performance but not being able to buy the best memory as the platform launches is pretty bad.
 

mac_angel

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I'm trying to understand the CUDIMM. It's suppose to be compatible with regular DDR5 slots. Does that mean previous generation CPUs can use CUDIMMs, too? Maybe with a BIOS update?
 
I'm trying to understand the CUDIMM. It's suppose to be compatible with regular DDR5 slots. Does that mean previous generation CPUs can use CUDIMMs, too? Maybe with a BIOS update?
From what I understand the IMC effectively needs to be able to understand what to do with the client clock driver. The CUDIMM compatibility on AMD motherboards currently is limited to Zen 5 and in bypass mode which means ignoring the CKD which is the whole point behind getting CUDIMMs in the first place.

I believe the reason they've implemented bypass is that JEDEC mandates a CKD be present in anything that adheres to their 6400 or higher speed specifications. This should mean over time more and more of the memory kits sold should be CUDIMMs and since AMD has promised support on AM5 through 2027 it would make sense that they would want to be able to just use whatever memory was on the market whether or not it can take advantage of the CKD.
 
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TheHerald

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I'm trying to understand the CUDIMM. It's suppose to be compatible with regular DDR5 slots. Does that mean previous generation CPUs can use CUDIMMs, too? Maybe with a BIOS update?
You can use them, you can't take advantage of them. Previous generation cpus can't communicate with the ckd so you have to run them in bypass mode.

Ckd introduces extra latency, so in order for them to be worthy you need to run higher speeds than normal dims anyways. And since older platforms can't really run over 8k, they are kinda pointless for 12th,13th and 14th gen
 
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