Intel Core Ultra Processors Get CUDIMMs So They Can Feel Special
Call It DDR5.5 If You Prefer
If you’ve seen mention of CUDIMMs and are wondering what exactly they are, it’s perhaps not quite as interesting as you hope. Clocked Unbuffered Dual Inline Memory Modules are simply DDR5 DIMMs with exceptionally high clocks which are designed for Intel Core Ultra CPUs. The acronym is a little tortured to ensure there is a CU in the name, while not specifically mentioning Core Ultra in the standard.
These CUDIMMs are clocked at an impressive 8200 MT/s with timings of 40-52-52-135 that run, at least in KitGuru’s testing at a rather uncomfortable 1.4V. Corsair will be offering CUDIMMs running from 8000MT/s to 9200MT/s and while they do benchmark well you will be hard pressed to notice a difference while gaming. They also come at quite a premium, but you will get some bragging rights for your investment.
Today we are reviewing a kit of Corsair Vengeance RGB 48GB DDR5-8400 CUDIMM memory, and there is no denying that is quite a mouthful.
More Tech News From Around The Web
- Kingston FURY Renegade RGB 48GB 8800MT/s CL42 CUDIMM Dual-Channel Kit Review @ NikKTech
- Patriot Viper Elite 5 Ultra DDR5-8000 UDIMM 48GB Dual-Channel @ TweakTown
- Patriot Viper Elite 5 Ultra RGB DDR5-6400 UDIMM 96GB @ TweakTown
- TEAMGROUP T-Force DELTA RGB ECO Silver 32GB DDR5-6400 CL38 Memory Kit Review @ Neoseeker
- G.Skill Trident Z5 NEO RGB DDR5-6000MT/s CL28 96GB @ KitGuru
- TEAMGROUP T-CREATE EXPERT 64GB 6000MHz CL34 Dual-Channel Kit Review @ NikKTech
- Klevv Cras V RGB 6000MT/s 32GB DDR5 @ KitGuru
- G.Skill Trident Z5 NEO RGB DDR5-6000MT/s CL34 128GB @ KitGuru
CU never.
Guess if this generation is Cu, then the next might be Ag? Au?
CUDIMMs are the new JEDEC industry standard beginning a 6400MT/s DDR5. They feature a client clock driver (CKD) to redrive and stabilize the clock signal on the module. Intel was the first to launch a DDR4-6400 based chipset, thus required CUDIMM technology. “CU” has nothing to do with “Core Ultra.” When overclocking on Intel 800-series systems, CUDIMMs are generally required past 8200MT/s.
https://www.kingston.com/en/blog/system-builder/what-is-a-cudimm-csodimm