Introduction
With the arrival of Intel’s new Z890 chipset along with Arrow Lake CPUs is the introduction of CUDIMM RAM sticks. Despite heavy promotion of CAMM2 during COMPUTEX 2024, Z890’s launch only gave us CUDIMMs. To put it simply, CUDIMMs have their own clock drivers on the sticks themselves, allowing improved signal quality and thus improving memory speed. DDR5 has challenged the industry in finding a solution in achieving faster speeds in the current format and so we see innovations like CAMM2 and CUDIMMs. For now though, CUDIMMs are looking to be the way forward as it is much easier to implement and is more flexible all while being in the same form factor as current motherboard, albeit with the caveat of CUDIMMs not being usable on motherboards that do not support CUDIMMs.
In this review we’ll take a look at Kingston’s inaugural offering of CUDIMMs, still bearing the FURY Renegade DDR5 name, we have the FURY Renegade DDR5 CUDIMM. Aside from subtle physical difference, it is similar to the existing kits. I’ll walk you through those differences and have a glimpse at performance in this review of the Kingston FURY Renegade DDR5 RGB CUDIMM kit. Read on!
Features & Specification
Specifications | Details |
---|---|
Capacities | Singles: 16GB, 24GB, 32GB, 48GB Kit of 2: 32GB, 48GB, 64GB, 96GB |
Speeds | UDIMM: 6000MT/s, 6400MT/s, 6800MT/s, 7200MT/s, 7600MT/s, 8000MT/s CUDIMM: 8400MT/s1 |
Latencies | CL32, CL36, CL38, CL40 |
Voltage | 1.35V, 1.4V, 1.45V |
Operating Temperature | 0ยฐC to 85ยฐC |
Dimensions | UDIMM: 133.35mm x 44mm x 7.66mm CUDIMM: 133.35mm x 45mm x 7.66mm |
Official product page – Kingston FURY Renegade DDR5 RGB Limited Edition
Available SKUs:
Part Number | Description |
---|---|
KF584CU40RS-24 | 24GB 8400MT/s DDR5 CL40 CUDIMM Silver XMP |
KF584CU40RSK2-48 | 48GB 8400MT/s DDR5 CL40 CUDIMM (Kit of 2) Silver XMP |
KF584CU40RW-24 | 24GB 8400MT/s DDR5 CL40 CUDIMM White XMP |
KF584CU40RWK2-48 | 48GB 8400MT/s DDR5 CL40 CUDIMM (Kit of 2) White XMP |
KF584CU40RSA-24 | 24GB 8400MT/s DDR5 CL40 CUDIMM RGB Silver XMP |
KF584CU40RSAK2-48 | 48GB 8400MT/s DDR5 CL40 CUDIMM (Kit of 2) RGB Silver XMP |
KF584CU40RWA-24 | 24GB 8400MT/s DDR5 CL40 CUDIMM RGB White XMP |
KF584CU40RWAK2-48 | 48GB 8400MT/s DDR5 CL40 CUDIMM (Kit of 2) RGB White XMP |
Kingston basically offers one RAM type across the entire product stack of CUDIMMs. While Kingston could offer these sticks in lower speeds, it seems they have gone and just offer the 24GB module in various bundles in black/silver and white/silver colorway up to 48GB with both non-RGB and RGB options available. This gives us a total of 8 SKUs with currently no other speeds or single kit capacity on offer as of December 2024.
Closer Look
As I mentioned in the opening, the Kingston’s CUDIMM kit is using the exact same packaging as its regular DDR5 brothers. The hero shot of the product at the front does have a slight variation versus its regular counterpart but if you have not seen the existing FURY Renegade DDR5, you would not aware. More about that in a bit but I have to mention that the only mention of CUDIMM is at the back of the packaging where it says HIGH PERFORMANCE CUDIMM.
Kingston stamps some panel lines on the FURY Renegade DDR5 CUDIMMs which adds some subtle lines to the heatspreader. The regular FURY Renegade DDR5 doesn’t have these details but other than that they are purely the same right now to the heatspreader label.
And important distinction is that their labels bear *****CU****** in its code format identifying it as CUDIMM. As older LGA1700 and AM5 motherboards currently do not support CUDIMMs, its important to note this so you don’t bash on your board thinking its a problem.
With that said, this review requires a new test platform and we have the new Intel Core Ultra 9 to test this with.
Performance Results
Test Setup
Test System Configuration (LGA1700) | |
CPU | Intel Core Ultra 9 285K – No Power Limits |
Motherboard | AORUS Z890 MASTER |
Cooling | ASUS ROG Ryuo III 360 |
Graphics Card | ZOTAC GeForce RTX 4080 AMP EXTREME AIRO |
Storage | KINGSTON FURY Renegade SSD 2TB |
Power Supply | FSP Hydro G Pro 1000W |
Case | OpenBench Table Community Edition |
Listed XMP Profiles:
- Default (JEDEC): DDR5-6400 CL52-52-52 @1.1V
- XMP Profile #1: DDR5-8400 CL40-52-52 @1.45V
- XMP Profile #2: DDR5-8000 CL38-48-48 @1.45V
- XMP Profile #3: DDR5-7600 CL38-46-46 @1.45V
Memory Bandwidth
CPU Benchmark Performance
Gaming Performance
Thoughts and Conclusion

By itself, CUDIMMs are hard to separate from standard memory kits that we have. Right now they don’t exist as anything special but rather an alternative if you really want larger support for faster kits. As much as AMD would hate to hear it, Intel still has the advantage in terms of memory support and speeds and Arrow Lake, despite its shortcomings, seems poised to push memory clock speeds. And with Arrow Lake being referenced as a viable option for certain professional applications, then faster memory can certainly benefit a portion of users that want to stretch their system further without pushing their CPUs.
While its limited situation favors Arrow Lake with CUDIMMs, right now its a very niche solution and gaming isn’t really the factor that will push you to get CUDIMMs as well. What memory brands like Kingston would like to do is push faster speed kits out without choking your system or causing instability. Take our last review for example where a DDR5-8000 kit just outright refused to work on boards that aren’t 2-slots only. With CUDIMMs, we’re seeing speeds upwards of DDR5-9600 on the market and applications that rely heavily on memory can certainly benefit from a stable DDR5 kit with faster clock speeds.
That said, CUDIMMs are at their infancy and the Kingston DDR5 FURY Renegade CUDIMM is an option if you want to go the >DDR5-8000 route without the need of running a 2-DIMM slot motherboard. In a future follow-up to this review, we’ll try and see how the Core Ultra responds to 4 sticks of CUDIMMs.
Back to the FURY Renegade, as with everything Kingston, they are an easy and safe recommendation for daily use. Right now, they are only offering DDR5-8400 with the CUDIMM kits meaning they are confident in pushing out these speeds only so they’re not risking instability with higher speeds.
But the ultimate question is do you need CUDIMMs? It’s tough and there’s no outright simple answer if it will suit you but if the question is you just want >DDR5-8000 on your system and want it as stable as possible, the Kingston FURY Renegade DDR5 CUDIMM memory kits are easily top consideration.
Listings of the Kingston FURY Renegade RGB DDR5-8400 CUDIMM 48GB kit goes for around $380~. Check with your local dealers for pricing and availability.
Kingston backs the FURY Renegade DDR5 CUDIMM with a limited lifetime warranty.