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Crucial CT2K64G56C46U5 DDR5-5600 128GB (2x64GB) specifications and in-depth review

Crucial CT2K64G56C46U5 DDR5-5600 128GB (2x64GB)

Manufacturer: Crucial

The Crucial CT2K64G56C46U5 DDR5-5600 is a high-capacity memory kit offering 128GB total size in two 64GB modules. With a tested speed of 5600 MHz, this DDR5 memory is designed to meet demanding workloads and performance needs.

Key technical features include 16.43 ns true latency, a 1.1V operating voltage, and support for Intel XMP 3.0 and AMD EXPO profiles. This memory does not include a heatsink or RGB lighting and operates at standard timings of CAS Latency 46, tRAS 45, tRCD 46, and tRP 45.

Pros
  • Supports Intel XMP 3.0 and AMD EXPO for easy overclocking and performance tuning.
  • High total memory size of 128GB (2 x 64GB), suitable for demanding applications and multitasking.
  • 1.1V operating voltage ensures energy efficiency compared to higher voltage modules.
Cons
  • Does not support ECC memory, which may be a drawback for error-sensitive applications.
  • Lacks integrated heatsink, potentially limiting heat dissipation in high-performance setups.
  • No RGB lighting, which may be a downside for users seeking aesthetic customization.
Who is this for?

The Crucial CT2K64G56C46U5 DDR5-5600 is ideal for users who require large memory capacities and reliable performance for memory-intensive applications. With a total size of 128GB (2 x 64GB) and support for Intel XMP 3.0 and AMD EXPO profiles, this kit is well-suited for overclocking and optimizing high-performance systems, particularly for professionals handling tasks like video editing, 3D rendering, or data analysis.

Who is this NOT for?

This memory is not ideal for users requiring error-correcting code (ECC) memory, as it does not support this feature. Additionally, the lack of a heatsink and RGB lighting means it may not be the best choice for high-performance gaming or aesthetically-focused builds where cooling and visual customization are priorities.

Performance:

true latency 16.43 ns
memory speed (Tested Speed) 5600
memory speed (SPD) 4800 MHz
DDR memory version 5
CAS Latency (CL) 46
tRAS timing 45
tRCD timing 46
tRP timing 45

The performance of the Crucial CT2K64G56C46U5 DDR5-5600 memory is highlighted by a tested memory speed of 5600 MHz and a true latency of 16.43 ns. It features a DDR5 memory version with CAS Latency (CL) of 46, tRAS timing of 45, tRCD timing of 46, and tRP timing of 45. While the memory speed in SPD is rated at 4800 MHz, the module is optimized for higher speeds and reliable performance under demanding tasks.

General info:

form factor 288-pin DIMM
memory size (total) 2 x 64GB
has Samsung B-Die ✕
voltage 1.1V
height 31.15 mm
release date February 2025
memory size 64GB

The Crucial CT2K64G56C46U5 DDR5-5600 memory features a total capacity of 2 x 64GB, offering 128GB in total. Each module is designed with a 288-pin DIMM form factor and operates at a voltage of 1.1V. The modules have a height of 31.15 mm, and they do not include Samsung B-Die chips, making them suitable for a wide range of system builds.

Features:

Intel XMP / AMD EXPO Intel XMP 3.0, AMD EXPO
Supports ECC memory ✕
Has an integrated heatsink ✕
has RGB lighting ✕

The Crucial CT2K64G56C46U5 DDR5-5600 memory offers support for Intel XMP 3.0 and AMD EXPO profiles, allowing for easy overclocking and enhanced performance. However, it does not support ECC memory, and it does not come with an integrated heatsink or RGB lighting, keeping the design simple and focused on performance.

Benchmarks:

Final Verdict

The Crucial CT2K64G56C46U5 DDR5-5600 memory is a solid choice for users seeking high-capacity, reliable RAM for demanding applications, offering a total of 128GB and support for Intel XMP 3.0 and AMD EXPO overclocking profiles. While it lacks features like ECC memory, integrated heatsinks, and RGB lighting, its strong performance and large size make it ideal for professionals who prioritize raw memory capacity and overclocking flexibility over aesthetic or error-correcting needs. This module is well-suited for tasks such as video editing, 3D rendering, or other memory-intensive workflows.

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