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| Product Type | Memory Module |
|---|---|
| Memory Capacity | 64GB (2 x 32GB) |
| Memory Technology | DDR5 |
| Product Voltage | 1.35 V |
| RAM Speed | 6400 MHz |
| RAM Standard | DDR5-6400/PC5-51200 |
| Error Identifying | Non-ECC |
| Signal Type | Unbuffered |
| Column Access Strobe (CAS) | CL40 |
| Quantity of Pins | 288-pin |
| RAM Genre | UDIMM |
This 64GB (2 x 32GB) DDR5-6400 unbuffered, non-ECC kit is purpose-built for high-performance desktop platforms, excelling in gaming, content creation, and heavy multitasking workloads where raw bandwidth and low latency are critical. Its CL40 timing at 6400 MT/s delivers a responsive edge, while the UDIMM form factor ensures straightforward XMP overclocking for instant, stable speed boosts on supported motherboards.
1. A 64GB dual-channel kit keeps AAA games, live streaming, and rendering workloads running concurrently without the micro-stutter caused by page swapping.
2. 6400MHz bandwidth feeds modern multi-core CPUs rapidly, translating into higher average frame rates and shorter 4K video export times.
3. CL40 timing maintains low-latency command execution, delivering the snappy input-to-display reaction that competitive gamers depend on.
4. The XMP-ready 1.35V profile provides comfortable voltage headroom for stable overclocking, allowing enthusiasts to push frequency further without immediate signal degradation.
5. As a standard UDIMM, this memory drops straight into mainstream desktop motherboards, making it a tool-free, hassle-free upgrade for DIY builders.
The Corsair CP2K32G64C40U5B is a high-performance DDR5 UDIMM memory kit designed specifically for desktop platforms, where raw speed and responsiveness define the user experience. In competitive AAA gaming, the 6400 MHz frequency and CL40 latency work together to feed modern CPUs with data at extreme rates, translating directly into higher frame rates, smoother gameplay, and the elimination of micro-stutter during texture streaming. For content creators editing 8K video or rendering complex 3D scenes, the 64 GB capacity becomes indispensable; it allows entire project files and assets to reside in memory, preventing the crippling slowdowns caused by disk paging when working with multi-gigabyte timelines. The unbuffered, non-ECC architecture strips away server-grade overhead, ensuring the lowest possible signal latency and full overclocking headroom for enthusiasts who tune secondary timings to shave milliseconds off response times. This means your editing timeline scrubs without hesitation, and every in-game action registers instantly, turning hardware potential into tangible competitive advantage during time-sensitive creative or gaming sessions.
Gaming Build
This 64GB (2x32GB) DDR5-6400 kit is overkill for most gaming titles, but it delivers an uncompromised dual-channel configuration. For a high-end gaming rig, you can either install the full 64GB for future-proofing or configure a 32GB setup by using just one module if budget is tight, though you will lose dual-channel bandwidth. A more balanced approach is to use a separate 2x16GB 6400MHz kit for today’s games and reserve this 64GB kit for a dedicated streaming/recording machine.
Content Creation
The 64GB capacity is a sweet spot for 4K/8K video editing, complex 3D rendering, and large-scale compositing. Install both 32GB modules in a dual-channel configuration to maximize memory bandwidth, which directly accelerates timeline scrubbing and viewport performance in applications like DaVinci Resolve or Blender. For heavy multitasking between After Effects, Photoshop, and a 3D DCC, this dual-rank UDIMM setup helps reduce memory bottlenecks significantly.
General Productivity
For office multitasking, email, and web-based workloads, 64GB is far beyond typical requirements. A cost-optimized approach would be to use a single 32GB module from this kit, leaving one slot free for a future identical stick if needs evolve. This still provides enough RAM for dozens of browser tabs and multiple productivity suites without paging, while avoiding unnecessary expense — though you'll temporarily run in single-channel mode.
Rigorously tested and validated for desktops like ASUS ROG Strix Z790-E, MSI MPG Z790 Carbon, Gigabyte X670E Aorus Master.
Q: Can I mix this CP2K32G64C40U5B with other memory modules of different brands or speeds?
A: Mixing different brands or speeds is not recommended and may cause instability. For guaranteed compatibility and dual-channel performance, install only the matched 2x32GB kit.
Q: Is this memory compatible with my system?
A: This 288-pin DDR5 UDIMM is designed for Intel 600/700 series or AMD 600 series chipset motherboards. Please verify your board's QVL for DDR5-6400 support to ensure stable operation.
Q: What is the recommended DIMM population order for optimal performance?
A: Install the two modules into slots A2 and B2 (2nd and 4th from CPU) as per most motherboard manuals. This enables dual-channel mode and maximizes signal integrity at 6400 MT/s.
Q: Does this module support overclocking or XMP profiles?
A: Yes, it supports Intel XMP 3.0 and AMD EXPO profiles. Enable the profile in BIOS to achieve the rated 6400 MHz at CL40; further overclocking depends on your CPU and motherboard capability.
Q: What warranty and typical failure rate can I expect?
A: This kit includes a 1-year warranty. Modern DDR5 modules exhibit an extremely low annualized failure rate, typically under 0.5%, when operated within specified conditions.