G.Skill Trident Z5 CK Series DDR5 CUDIMMs with Clock Drivers Pictured

[btarunr]

Ahead of its launch, some of the first pictures of G.Skill Memory's Trident Z5 CK series DDR5 CUDIMMs leaked to the web. The "CK" brand extension is used to denote CUDIMMs, or DDR5 DIMMs with a client clock-driver (CKD) component. The CKD is a component that acts like a filter to the memory physical-layer digital waveform, "clearing up" the memory eyes at high memory clocks. This enables higher DDR5 speeds upward of 8000 MT/s, although CUDIMMs can also be found at speeds as low as 6400 MT/s. Intel considers DDR5-8000 the "sweetspot" memory speed for its Core Ultra "Arrow Lake-S" desktop processors, which means 8000 MT/s should be possible in Gear 2 mode, and future memory kits with speeds in excess of 10000 MT/s should be possible with Gear 4.



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[freeagent]

Pardon my ignorance..

So is DDR dead and CUDIMM next in line to take over?

 

[Blaeza]

Pardon my ignorance..

So is DDR dead and CUDIMM next in line to take over?

I thought CUDIMM needed a special motherboard? And they attached flat to the board?

 

[Chaitanya]

Pardon my ignorance..

So is DDR dead and CUDIMM next in line to take over?

Here is article from Anandtech explaining what CUDIMMs are and what changes to UDIMM.

CUDIMM Standard Set to Make Desktop Memory a Bit Smarter and a Lot More Robust

www.anandtech.com

 

[Kirederf]

I thought CUDIMM needed a special motherboard? And they attached flat to the board?

No, that is CAMM2.

CUDIMM are just UDIMM DDR5 modules with an add clockdriver on the memory stick to set the clockspeed.

 

[Chaitanya]

I thought CUDIMM needed a special motherboard? And they attached flat to the board?

You are confusing DDR5 Ram module that has clock driver with CAMM2/LPCAMM modules which also have option to add clock driver.

 

[Onasi]

@Blaeza
No. That’s CAMM. CUDIMM just allows for theoretically higher stable clocks.

 

[freeagent]

Here is article from Anandtech explaining what CUDIMMs are and what changes to UDIMM.

CUDIMM Standard Set to Make Desktop Memory a Bit Smarter and a Lot More Robust

www.anandtech.com

Excellent, thank you

 

[Blaeza]

All these different standards confuse me. Wonder what the price difference will be?

 

[ir_cow]

I thought CUDIMM needed a special motherboard? And they attached flat to the board?

Just needs a BIOS update to existing motherboards, but that will never come. Intel new boy is the only one so far for support.

 

[theglaze]

Just needs a BIOS update to existing motherboards, but that will never come. Intel new boy is the only one so far for support.

Yup, CUDIMM not even available for sale... but tomorrow's Intel Arrow lake reviews will show many reviewers with CUDIMM sticks and Z890 boards capable of +8000 speeds.

 

[Super Firm Tofu]

Yup, CUDIMM not even available for sale... but tomorrow's Intel Arrow lake reviews will show many reviewers with CUDIMM sticks and Z890 boards capable of +8000 speeds.

They are. Just the basic models.

 

[ir_cow]

The "high-speed" 9200+ stuff won't go retail until December, if not later

 

[RayneYoruka]

Here is article from Anandtech explaining what CUDIMMs are and what changes to UDIMM.

CUDIMM Standard Set to Make Desktop Memory a Bit Smarter and a Lot More Robust

www.anandtech.com

Good read, I haven't been following much DDR5 but this is defo a good thing

 

[Chaitanya]

Just needs a BIOS update to existing motherboards, but that will never come. Intel new boy is the only one so far for support.

Even if old boards get BIOS update for CUDIMM wouldnt they still have restrictions which MSI has listed out on their X870 boards(which seem to be the only X870/e boards with CUDIMM support) since memory controller for older CPUs isnt designed for CUDIMM support?

 

[ir_cow]

Even if old boards get BIOS update for CUDIMM wouldnt they still have restrictions which MSI has listed out on their X870 boards(which seem to be the only X870/e boards with CUDIMM support) since memory controller for older CPUs isnt designed for CUDIMM support?
View attachment 368701

I think it's just a issue that the BIOS doesn't know what to do with it like 24GB DIMMs. There is a lot of unknowns and the stuff I was told at CES 2024 might not be true anymore, so won't repeat.

So the answer is I don't know.

 

[_roman_]

Even if old boards get BIOS update for CUDIMM wouldnt they still have restrictions which MSI has listed out on their X870 boards

A mainboard manual is hardly updated. Homepages also lack newer information for older boards. Support for newer Processors, higher RAM sizes and such.
Even cardboard boxes of my mainboards are not updated.

It just costs money which the mainboard brands do not want to spend on "older" existing boards.