News Intel's Core Ultra 200 desktop CPUs reportedly support DDR5-10000 RAM — Arrow Lake-S takes advantage of CUDIMMs with clock drivers

[Admin]

Intel's next-generation Core Ultra 200 Arrow Lake CPUs will reportedly support up to DDR5-10000 CUDIMMs.

Intel's Core Ultra 200 desktop CPUs reportedly support DDR5-10000 RAM — Arrow Lake-S takes advantage of CUDIMMs with clock drivers : Read more

 

[thestryker]

At this point I'm mostly curious to see what the availability of CUDIMMs will look like. Earlier leaks all indicated ARL would be running 6400 for default memory speeds, but when Acer announced their forthcoming PCs with ARL mentioned 5600 with 6000 being an overclocked. choice. All of the enthusiast CUDIMM announcements have been from Chinese companies which could potentially indicate limited supply.

By contrast, two DDR5-9600 modules provide a peak DRAM bandwidth of 96 GB/s.

*153.6 GB/s

 

[Notton]

All that work into CUDIMM and it only hits 160GB/s memory bandwidth?

Why not add more memory channels?

 

[nitrium]

All that work into CUDIMM and it only hits 160GB/s memory bandwidth?

Why not add more memory channels?

I've often wondered about this myself. Dual Channel RAM became more or less mainstream in 2006 (I think?), and while tri, quad, hex etc solutions do exist, none have been adopted for consumer hardware, with the focus since always being more MHz to improve speed.

 

[thestryker]

The reason standard client hasn't moved past dual channel is likely a combination between not needing more bandwidth and cost. Adding memory channels means extra pins on the CPU and a more complex memory topology. It has only been more recently as desktop core counts have gone up that there's been more need for memory bandwidth. This is a place where going from DDR4 to DDR5 moved the needle quite a bit.