Kingston FURY Renegade DDR5-8400 RGB CUDIMM (48 GB) Review

In this review, we’re diving into the Kingston FURY Renegade DDR5 RGB CUDIMM, a high-performance memory kit that promises exceptional speed and capacity.

With an impressive speed of 8400 MT/s and a total capacity of 48 GB, this is Kingston’s initial foray into the Client Clock Driver (CKD) technology, supporting Intel’s latest Core Ultra processors along the way. See how it performs with our standard suite of benchmarks.

Disclosure: Kingston sent the FURY Renegade DDR5-8400 RGB CUDIMM memory kit for the purpose of this review. The brand did not ask me to say anything particular about it.

Technical Specifications

The Kingston FURY Renegade RGB CUDIMM, with part number KF584CU40RSAK2-48, is a high-performance memory kit featuring two DDR5-8400 CL40 modules, each with a capacity of 24 GB, for a total of 48 GB. As Kingston’s first CUDIMM, this memory module incorporates a Client Clock Driver (CKD) component, which enhances signal quality by redriving the clock signal. This reduces noise and jitter, ultimately improving signal integrity and overall system performance.

Memory
SDRAM	DDR5
Interface	LO-DIMM (CUDIMM)
Capacity	48 GB (2x 24 GB)
Speed	8400 MT/s
Timings	CL40-52-52
Voltage	1.45 V
Dimensions
Length	133.35 mm
Width	7.66 mm
Height	45 mm
Weight	163 g

Packaging and Accessories

The Kingston FURY Renegade DDR5-8400 RGB CUDIMM is packed in a slim packaging. Nothing special to see here.

Scope of delivery are as follows:

• 2x Kingston FURY Renegade DDR5-8400 RGB CUDIMM memory

Design, Layout and Connectivity

The Kingston FURY Renegade DDR5-8400 RGB CUDIMM is almost identical to its UDIMM variant, featuring extra details stamped on its aluminum heatsink. The RGB lighting bar received an embossed detailing as well. On that note, the CKD enabled FURY Renegade uses IR sensors to communicate with each other for lighting customization.

Nothing else hints that this is a DDR5 CUDIMM aside from the SKU so those with a fetish to flaunt such stuff will be disappointed. However, I am quite happy to report this DIMM is just 45 mm tall, so compatibility with CPU air coolers shouldn’t be an issue at all.

The memory we got features the part number KF584CU40RSAK2-48. This comes with four profiles: Default, which is a JEDEC specification that runs at DDR5-6400 CL52-52-52 @ 1.1 V; XMP #1 with DDR5-8400 CL40-52-52 @ 1.45 V; XMP #2 at DDR5-8000 CL38-48-48 @ 1.45V; and finally XMP #3 at DDR5-7600 CL38-46-46 @1.45 V.

This memory kit is benchmarked with a test system featuring the Intel Core Ultra 9 285K processor, an NVIDIA GeForce RTX 4080 graphics card, and a GIGABYTE Z890 Aorus Master motherboard.

Software

To personalize the RGB lightbar on the Kingston FURY Renegade DDR5-8400 RGB CUDIMM, you’ll need to download the FURY CTRL software, available on Kingston’s website or the Microsoft Store. This software offers a wide range of customization options and presets, allowing you to adjust the LED’s width, hue, and output direction to suit your preferences.

Additionally, the FURY CTRL features an intuitive monitoring tool that enables you to track the memory’s real-time temperature and voltage levels.

Throughput

The FURY Renegade DDR5-8400 RGB CUDIMM delivers impressive benchmark results, with average read, write, and copy speeds of 109.54 GB/s, 91.939 GB/s, and 101.20 GB/s, respectively. However, its latency is rated at 87.5 ns, which is relatively high when compared to the FURY Renegade DDR5-8000 on the AMD platform. Despite this, the overall performance with the Intel Core Ultra 9 285K processor remains remarkable for a memory module in its class.

Encryption

The FURY Renegade RGB CUDIMM achieves a performance rating of 140,965 MB/s with AES, and 9,889 MB/s with SHA3 at AIDA64’s benchmark.

3D Rendering

In Blender 4.0, the Kingston FURY Renegade RGB CUDIMM operating at DDR5-8400 achieved scores of 257.80, 170.35, and 125.85 SPM. These are the fastest results I have seen so far – at least with the Intel Core Ultra 9 285K processor.

AI Inference

While AI inference benchmark results via Procyon may not match the speed of dedicated NPUs, the ones we got are excellent for x86 CPUs.

Content Creation

For Adobe applications, the DDR5-8400 FURY Renegade memory kit excelled in UL Procyon benchmarks, with particularly impressive results in Premier Pro.

Productivity

In terms of Microsoft Office 365 applications, the test system performed quite well.

Compression

Regarding compression performance, 7-Zip starts with a result of 195.214 GIPS and gradually decreases to 168.026 GIPS at the 256 MB test, corresponding to a total memory usage of 38.7 GB.

Gaming

Gaming performance with the NVIDIA GeForce RTX 4090 and Intel Core Ultra 9 285K is outstanding, delivering 627.10 FPS in Counter-Strike 2, 249.62 FPS in Final Fantasy XIV: Dawntrail, and 587.14 FPS in Civilization VI.

Temperature

The FURY Renegade RGB CUDIMM displayed notable thermal performance across the GIGABYTE Z890 Aorus Master’s memory slots. For ‘Bank 0’, the recorded temperatures ranged from 53.39°C to 58.75°C. Meanwhile, ‘Bank 1’ showed a temperature span from 50.97°C to 55.75°C. These readings indicate efficient thermal regulation, ensuring reliable performance under varying operational conditions.

Power

The FURY Renegade RGB CUDIMM demonstrated consistent power output across its memory banks. ‘Bank 0’ exhibited a power range from 0.75W to 6.88W, while ‘Bank 1’ showed the same range from 0.75W to 6.88W.

Final Thoughts

In conclusion, the Kingston FURY Renegade DDR5-8400 RGB CUDIMM represents a bold and exciting step forward in memory technology, marking Kingston’s first foray into JEDEC’s Client Clock Driver (CKD) initiative. With its impressive speed of up to 8400 MT/s, substantial 48 GB capacity, and excellent performance across a wide range of benchmarks, this memory module is tailored to meet the demands of high-performance enthusiasts and professionals alike. It showcases robust capabilities in areas such as gaming, content creation, and productivity, consistently delivering top-tier results with the Intel Core Ultra 9 285K processor.

Kingston demonstrates thoughtful engineering in the FURY Renegade’s design, with features like an efficient aluminum heatsink for thermal regulation, IR-based RGB customization powered by Kingston’s intuitive FURY CTRL software, and a decent z-height that ensures compatibility with most CPU air coolers.

Despite its strong showing, it’s important to note that CUDIMM technology is still in its infancy. As a relatively new innovation, it faces certain limitations in adoption and possible compatibility across platforms, making it difficult to predict its long-term impact on the market. To add, while the module delivers excellent results with Intel’s latest Core Ultra 9 processor, latency comparisons suggest there’s room for further optimization, particularly when contrasted with other high-performance options on AMD platforms.

Nonetheless, the Kingston FURY Renegade DDR5-8400 RGB CUDIMM is undeniably a significant milestone. It not only pushes the boundaries of DDR5 memory performance but also opens the door to new possibilities through CKD technology. As the technology matures and gains wider industry adoption, its full potential will likely become more evident.

For now, this memory module serves as a testament to Kingston’s ambition and innovation in the realm of high-performance computing.