Kingston FURY Renegade DDR5 RGB CUDIMM Memory Unboxing Review

The Kingston FURY Renegade DDR5 RGB CUDIMM memory with RGB lighting and CKD (Client Clock Driver) is available in 8400MT/s CL40-52-52-132 (2x24GB) and supports Intel XMP 3.0 Profile. The author has also manually overclocked to DDR5 RGB5 CUDIMM memory on Intel Core Ultra 200 series platforms. 11316 MT/s (5658.1 MHz) demonstrates its remarkable overclocking capability for your reference.

Kingston FURY Renegade DDR5 RGB CUDIMM 8400MT/s 48GB (2x24GB) Memory Specifications:

Model: KF584CU40RSAK2-48
Capacity: 48GB (2x24GB)
Speed: DDR5 8400 MT/s
Chronology: CL40-52-52-132
Voltage: 1.45V
Specification: 288-Pin DDR5 CKD UDIMM
Warranty: Lifetime Warranty
Length, width and height dimensions: 133.35 mm x 45 mm x 7.66 mm
Profile Certification: Intel XMP 3.0 Certified (Extreme Memory Profile)

Kingston FURY Renegade DDR5 RGB CUDIMM Memory Unboxing!

This unboxing is the FURY Renegade DDR5 RGB CUDIMM memory from Kingston, with a first release specification of 48GB (2x24GB) of DDR5 8400 MT/s, which is a 400 MT/s increase in frequency over the 8000 MT/s that Kingston has been mass producing and selling in the past for ordinary UDIMM memory. /s is another two steps up!

From the front of the box, the FURY Renegade DDR5 RGB CUDIMM memory does not have any special labeling, or the obvious change in product naming lets the consumers know that this is a CUDIMM memory, the author's "guess" is that Kingston is directly using the frequency to classify it, and the frequency specification from 8400 MT/s onwards is the CUDIMM with CKD chip; from 8000 MT/s and below is the normal UDIMM. The frequency specification from 8400 MT/s onwards is CUDIMM with CKD chips; from 8000 MT/s onwards is ordinary UDIMM.

The ∆Kingston FURY Renegade DDR5 RGB CUDIMM 8400 MT/s 2x24GB memory is actually only supported on Intel platforms, and it is proposed that Kingston take out the AMD wording.

∆ Product model KF584CU40RSAK2-48.

∆Supports Intel XMP 3.0 Profile only.

 

The appearance of the whole memory is not much different from the FURY Renegade DDR5 RGB memory that I have unboxed in the past, if you are interested in seeing more details of the appearance, please refer to the "FURY Renegade DDR5 RGB memory".Kingston FURY Renegade DDR5 RGB 6000 MT/s 16GBx2 Unboxing》、《Kingston Renegade DDR5 RGB Non-Binary DDR5 Memory Performance Comparison UnboxingIn these two unboxing articles, the memory height is 45 mm, slightly higher by 1 mm, and uses a 1R single-sided cell layout with eight DRAM IC cell configurations.

According to the press release, the first release will not only be the black and silver model, but will also be the same as theKingston FURY Renegade DDR5 RGB 7200 MT/s 16GBx2 Silver MemoryThe same look is available in silver.

∆ The appearance of the heatsinks is not much different, the FURY Renegade DDR5 RGB CUDIMM only has a change in the layout of the “Renegade DDR5” text.

∆ Rear view angle, memory height is 45 mm, a little bit higher.

 

What platforms can CKD (CUDIMM) memory be used on?

The so-called CKD memory, also known as CUDIMM or CKD UDIMM, is actually an integrated clock driver (Client Clock Driver_CKD) IC chip on top of the ordinary UDIMM memory in the past, and there is a similar principle of CKD SO DIMM memory in SO DIMM memory used in laptop computers and other small models.

The default frequency of CUDIMM is 6400 MT/s, if you forget to turn on the XMP, it will run at 6400 MT/s. For board manufacturers, there are a few that can support higher frequency JEDEC 7200 MT/s (but it is easy to be unstable); there are one or two that only support 6400 MT/s. Even if you use CUDIMM with higher frequency, it will still automatically drop to 6400 MT/s to boot up. Even if you use a CUDIMM with a higher JEDEC frequency, it will still be automatically downgraded to 6400 MT/s, so basically the current CUDIMM JEDEC frequency is 6400 MT/s.

What platforms can CKD UDIMM memory be used on? The answer is Intel Core Ultra processors and the Z890 chipset (for now), which only supports Intel Core Ultra 9 285K, Ultra 7 265K, Ultra 7 265KF, Ultra 5 245K, Ultra 5 245KF, and Z890 motherboards (more on this in the future). (more on this in the future).

In the past, Intel Core 12th / 13th / 14th with B660 / B760 / Z690 / Z790, and competing AMD AM5 Ryzen 7000 / 8000 / 9000 with B650 / B650E / X670 / X670E / X870E, etc., these DDR5 platforms "do not support" CUDIMM (CKD UDIMM). CUDIMM (CKD UDIMM) memory.

Some people on the internet have misunderstood the definitions of "supported" and "available". If you install CUDIMM on a platform that doesn't support CUDIMM, the BIOS will pop up a message saying "CKD is not supported on this platform" and tell you that you can only run CKD in Bypass mode, which means that you will bypass CKD to run the memory. At this point, the system will run at 3600 MT/s, but if you re-enter the BIOS and turn on Profile, you can still use Profile (of course, this depends on the overclocking capability of the platform itself).

So is it possible to use CUDIMM memory on older platforms or not? Well, if you want to get into the weeds, you can, but CKD operates in Bypass mode, so why would you pay more for CUDIMM? If CKD is Bypass, it's just a regular UDIMM, and since older platforms don't support it, then you should just buy a regular UDIMM, and you'll save on the price difference.

∆Full use of Kingston FURY Renegade DDR5 RGB CUDIMM memory is now only available on Intel Core Ultra processors and the Z890 platform.

∆ supports Kingston FURY CTRL and various board maker's software to set up lighting effects, 18 RGB lighting effects are available by default.

 

Intel Core Ultra 9 285K and ASRock Z890 Taichi OCF platform memory overclocking test.

The first test was conducted using an Intel Core Ultra 9 285K test platform supporting DDR5 CKD memory and XMP 3.0, with the motherboard using ASRock Z890 Taichi OCF and BIOS updated to version 2.22 to test the performance and overclocking capacity of the Kingston FURY Renegade DDR5 RGB CUDIMM. Kingston FURY Renegade DDR5 RGB CUDIMM 8400MT/s 48GB (2x24GB) memory for performance and overclocking.

Testing Platform

Processor:Intel Core Ultra 9 285K (Power Delivery Profile_ASRock Extreme Mode)
Cooler: Valkyrie E360 (full speed)
Water-cooled fan: LIAN LI UNI FAN P28 (full speed)
Motherboard: ASRock Z890 Taichi OCF ( BIOS version: 2.22)
Memory: Kingston FURY Renegade DDR5 RGB CUDIMM 8400MT/s 48GB (2x24GB)
Graphics: NVIDIA GeForce RTX 4060 Ti Founders Edition 8GB
Operating System: Windows 11 Professional 24H2
System Drive: Plextor PCIe Gen3 x4 M.2 2280 SSD 512GB
Game Dish:XPG GAMMIX S70 PRO PCIe Gen4 x4 M.2 SSD 4TB
Power supply:FSP Hydro PTM PRO ATX3.0 (PCIe5.0) 1200W
Case: STREACOM BC1 Benchtable V2
Graphics driver: GeForce Game Ready 561.09

 

In the motherboard's BIOS, you can see that there are three built-in Intel XMP 3.0 Profiles that can be used, and only when XMP 1 is turned on will the DDR5 8400 CL40 operate, but if the platform itself has a poorer quality, you can also choose to use the other two profiles, and the author has really come across a 265K that can only be overclocked to 8200 MT/s with a super poor quality. I have really met a 265K that can only be overclocked to 8200 MT/s.

•  Default (JEDEC): DDR5-6400 CL52-51-51-102 1.1V
•  XMP Profile #1: DDR5-8400 CL40-52-52-132 1.45V
•  XMP Profile #2: DDR5-8000 CL38-48-48-128 1.45V
•  XMP Profile #3: DDR5-7600 CL38-46-46-105 1.45V

∆ Three built-in XMP Profile profiles are available.

The ∆ CKD Client Clock Driver uses Rambus, which is the brand name used in most CKD memories today.

 

firstly CPU-Z To review the specification of the test platform, the SPD page shows that the Kingston FURY Renegade DDR5 RGB CUDIMM 8400MT/s 48GB (2x24GB) memory is based on SK Hynix cells and supports the latest Intel XMP 3.0 (Extreme Memory Profile) one-touch overclocking technology. Profile) one-click overclocking technology.

∆ Intel platform CPU-Z.

 

utilization AIDA64 Cache & Memory Benchmark Kingston FURY Renegade DDR5 RGB CUDIMM 8400MT/s 48GB (2x24GB) memory was tested at JEDEC's default frequency of 6400 MT/s with read/write scores of 93772 MB/s and 82011 MB/s, and a latency of 103.3 ns.

With XMP Profile 1 DDR5-8400 MT/s turned on, the test results were 126690 MB/s and 101215 MB/s read/write with 79.1 ns latency.

The author also manually overclocked to 9133 MT/s in Gear2 mode with no voltage or timing, and passed the Benchmark test, which showed 132300 MB/s and 100700 MB/s read/write, with 74.3 ns latency.

*AIDA64 does not yet fully support the new Intel Core Ultra 9 285K and other new series of processors, so just take a look at the results.

∆ JEDEC DDR5 6400 MT/s CL52-51-51-102 1.1V Test Results.

∆ XMP Profile 1 DDR5 8400 MT/s CL40-52-52-132 1.45V Test Results.

∆ Maintains Gear2 manual overclocking to DDR5 9133 MT/s.

 

The author has also conducted OCCT The MEMORY BENCHMARK CONFIGURATION benchmark is a three-part test of memory performance, each representing memory read performance, memory write performance, and memory performance in simultaneous read and write tests.

LATENCY / BANDWIDTH BENCHMARK CONFIGURATION represents the delay and bandwidth of the memory.

∆ JEDEC DDR5 6400 MT/s CL52-51-51-102 1.1V Test Results.

∆ XMP Profile 1 DDR5 8400 MT/s CL40-52-52-132 1.45V Test Results.

 

And then through AIDA64 System Memory The stress stability of memory was tested with the memory XMP 3.0 Profile 1 parameter DDR5 8400 MT/s CL40-52-52-132 1.45V. The test scenario was an actual test in a closed room, and the temperature of the SPD Hub was 72°C at the maximum after 30 minutes of testing.

I would like to remind you that this ASRock Z890 Taichi OCF was tested on the STREACOM BC1 Benchtable V2 bare test platform, and there is no additional fan in the memory to assist with cooling, but most users will install an exhaust fan above the chassis to assist with the cooling process, and the author's test environment as well as the test software are more demanding than daily use. The author's test environment and test software are more severe than daily use, so the temperature test here is for reference only.

∆AIDA64 system memory temperature test without fan, SPD Hub up to 72 °C.

 

Manual overclocking to DDR5 with a single bar 11316 MT/s (5658.1 MHz), in addition to breaking the previous author's Kingston FURY Renegade DDR5 RGB Limited Edition 8000MT/s 48GB (2x24GB) MemoryThe overclocking is up to DDR5-...11036 MT/s (In addition to the record of 5518.3 MHz, it also broke the author's own personal record, and I hope that it will continue to go even higher in the future!

∆ Manual overclocking DDR5 11316 MT/s.

 

Conclusion

This is an unboxing of the Kingston FURY Renegade DDR5 RGB CUDIMM 8400MT/s 48GB (2x24GB) memory. With the CKD Client Clock Driver, Kingston has further introduced 8400 MT/s memory for the high-frequency market, but only with Intel Core Ultra 200 series platforms. Kingston further offers 8400 MT/s memory for the high-frequency market, but only with the Intel Core Ultra 200 series platforms to fully utilize this memory with CKD running.

Of course, whether or not it can be used is still based on the compatibility QVL list, and we suggest that consumers check whether or not the KF584CU40RSAK2-48 is on the motherboard compatibility list before purchasing, and if you are unfortunate enough to have bought an IMC (Integrated Memory Controller) processor with a super-branded body, you will still have the spare two profiles. 8000 / 7600 can be used (I hope you don't have to use them).

With XMP 3.0 One-Click Overclocking Profile enabled, the Kingston FURY Renegade DDR5 RGB CUDIMM was directly overclocked from the default frequency of 6400 MT/s to 8400 MT/s, and gained a performance increase of 35% in AIDA64 read/write test and further reduced the latency performance by 30%, while in the OCCT test, it gained a performance increase of 30%. In the OCCT test, it gained 30% in read/write performance and further reduced the latency by 27%.

Later on, the author overclocked to DDR5 9133 MT/s without changing the voltage and timing, and kept the Gear2 mode, and further gained 41% of read performance over the default frequency, and lowered the latency performance by 39% to 74.3 ns.

Finally, I have successfully overclocked to DDR5 under extreme overclocking. 11316 MT/s (5658.1 MHz), the current ranking of Kingston FURY Renegade DDR5 CUDIMM (no light version) can be overclocked up to DDR5 12,196 MT/s (6097.6 MHz) by MSI, the author is still far from the target!

As for the question of whether CUDIMM is better? Since I don't have the same batch of memory on hand for comparison, I can't confirm or compare, but Kingston only uses CUDIMM for 8400 MT/s. From the common sense, if you want to make higher frequency memory modules, the PCB and DRAM IC components and quality will be more demanding, so no matter whether CKD can enhance the overclocking space or not, under the premise of more stringent production requirements, "theoretically", higher frequency memory will still have more space than lower frequency memory. Therefore, regardless of whether CKD can enhance the overclocking space or not, under the premise of more stringent production requirements, "theoretically" higher frequency memory will still have more overclocking limits than lower frequency memory.

For consumers, the Kingston FURY Renegade DDR5 RGB CUDIMM seems to have one thing to be aware of, and that is, in the AIDA64 System Memory stress test with a fanless 2DIMM socketed motherboard, although there were no errors or failures, the temperatures reached as high as 72°C. Of course, the author's test environment was not arranged for direct fan blowing to help dissipate the heat, and the fact that the 2DIMM socketed motherboards were closer to each other made the overall test even more stringent, which is unlikely for most daily use. Of course, in my test environment, there is no fan blowing directly to help dissipate the heat, and the 2DIMM socket motherboards with memory closer to each other make the overall test even more stringent, which is unlikely to be so severe for most daily use, but it is still recommended that a cooling fan be added on top of the chassis to help dissipate the heat.