Since the launch of CUDIMM DDR5 memory, the introduction of the CDK chip has alleviated the pressure on the processor’s memory controller, allowing the memory to easily achieve high frequencies, making it no longer difficult to exceed 8000+ MT/s. Recently, the launch of DeepSeek has also made AI large models no longer exclusive to computing machines; with mainstream graphics memory and larger storage, local deployment at home is now possible. As a representative of high-end hardware, Corsair has also launched several CUDIMM DDR5 memory products. In this article, I will test and experience the charm of high frequency and large capacity combinations.
This test uses the Corsair Vengeance DDR5 CUDIMM 8200MT/s 24Gx2 memory combination, comparing the performance with and without XMP enabled to feel the characteristics of high frequency and large capacity. Before the test begins, it can be seen that the base frequency of CUDIMM is higher, with a starting frequency of 5600 MT/s, surpassing entry-level DDR5 frequencies, indicating that even in basic performance, it is stronger than ordinary DDR5 memory.
(Note: Currently, platforms that can use CUDIMM DDR5 memory include Intel: Ultra 200 series + 800 series motherboards; AMD: Ryzen 8000/9000 + X870E/X870 motherboards)
Benchmark Software Theoretical Testing
This test uses the Intel Ultra 9 285K + Z890 motherboard, ensuring compatibility with CUDIMM DDR5 memory while also ensuring that memory performance is not hindered. First, the CPU-Z test shows that CPU-Z’s testing focuses more on CPU performance and is not sensitive to memory frequency.
Next is the AIDA64 memory test, which clearly demonstrates the advantages of high-frequency memory, showing nearly a 90% improvement in read speeds and a 50% improvement in write speeds, indicating a significant increase.
Latency has also been reduced by 55%, a level of improvement that ordinary DDR5 memory cannot match.
(If the memory technologies of various motherboards are enabled, latency can be even lower)
Next is the 3DMark test, a common software for testing gaming performance. The Fire Strike Ultra is a DX11 test, while Time Spy Extreme is a DX12 test. Since this test mainly focuses on memory performance, the primary focus is on CPU scores and physics scores.
↑ In the DX11 test, enabling XMP provides nearly a 2% improvement
↑ In the DX12 test, enabling XMP results in a 6% improvement
Finally, a game performance test is added, which is not a major reference but is worth a look.
AAA Game Built-in Benchmark Testing
For the game performance test, the commonly used test game is Shadow of the Tomb Raider, which excels in graphics quality, optimization, and application technology, and also includes a built-in benchmark, making it very suitable for demonstrating the differences in real game performance. First up is Tomb Raider: Rise of the Tomb Raider, which is a DX11 game, showing a 15% increase in overall frame rates during testing.
In Shadow of the Tomb Raider, a DX12 game, although the overall average frame rate does not change much, there is over a 20% improvement in CPU gaming and CPU rendering tasks.
Due to the support of ray tracing in Shadow of the Tomb Raider, this test also includes a ray tracing test. It can be seen that the improvement in memory frequency is not as significant as when ray tracing is disabled, as ray tracing puts more pressure on the graphics card’s ray tracing units, resulting in only about a 5% increase.
More Product Images for Appreciation
↑ Images are for visual effect only; it is recommended that players use two memory sticks, as using four may lead to performance degradation.
From my simple tests, it can be concluded that CUDIMM DDR5 memory represents a stronger form of DDR5, offering higher frequencies with lower latency, further reducing platform bottlenecks. The Corsair Vengeance DDR5 CUDIMM 8200MT/s 48G kit not only provides high-frequency performance but also offers a single 24G option, giving players more choices for building large-capacity platforms.
