Crucial Pro Overclocking CP2K32G64C34U5
Expert rating8.8 / 10
- DDR Generation:
- DDR5
- Capacity:
- 64GB (2x32GB Kit)
- Speed:
- 6400MT/s
- CAS Latency:
- CL34
- RGB Lighting:
- No
- Module Height:
- 34.8mm (Low-Profile)
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Manufacturer: Crucial Last updated: 2026-09-14T18:05:04.000Z
Crucial Pro Overclocking CP2K32G64C34U5 Review
Crucial Pro Overclocking CP2K32G64C34U5 is the flagship of Crucial's performance line, 64GB (2x32GB) at a punchy 6400MT/s CL34, using higher-binned dies at 1.4V to combine top-tier DDR5 frequency with workstation-grade capacity in a low-profile (34.8mm) heat spreader.
This is Crucial's answer for the buyer who wants both the biggest number on the speed sticker and enough capacity to never think about RAM again, video work, big datasets, or heavy gaming-plus-streaming all fit comfortably. It also keeps the Pro Overclocking line's low-profile (34.8mm) heat spreader, so it clears tall CPU air coolers that would clash with taller RGB flagship kits.
High-Bin Dies at 64GB
6400MT/s at CL34 requires higher-binned DDR5 dies than the 5600-6000MHz mainstream tier, and running that speed across 32GB single modules (rather than smaller 16GB sticks) is a harder binning target that fewer manufacturers hit at scale.
Comparison to Alternatives
Against the Kingston FURY Renegade RGB KF560C32RBAK2-64 (64GB, 6000MHz, CL32, RGB, taller heat spreader), the Kingston kit has tighter absolute latency and RGB, while this Crucial kit wins on raw frequency, a lower-profile heat spreader, and dual-platform XMP/EXPO certification without any lighting software. Compared to the Crucial Pro Overclocking CP2K16G60C36U5 (32GB, 6000MHz), step up to this 64GB/6400MHz kit for both more capacity and more speed at the same low-profile 34.8mm height.
Our verdict
Reviewed by Burooj Alam. Rated by us, not by users.
Expert rating8.8 / 10
Crucial's flagship DDR5 kit, competitive on both capacity and frequency against the best gaming-brand options, in a low-profile 34.8mm heat spreader.
Best for
- High-end gaming and streaming rigs
- Content creators wanting maximum speed and capacity together
- Enthusiasts who want cross-platform XMP/EXPO in one SKU
- Low-clearance builds needing a low-profile flagship kit
Not for
- Budget or mid-range builds
- RGB-themed showcase PCs
- Systems where 32GB is already sufficient
Specifications
What these specs meanHow fast this kit is among DDR5 kits, rated from its speed and latency.
Identity
| Peak Bandwidth | 102.4 GB/s |
|---|---|
| Brand | Crucial |
| Part Number | CP2K32G64C34U5 |
| Series | Crucial Pro Overclocking |
Memory
| DDR Generation | DDR5 |
|---|---|
| Capacity | 64 GB |
| Speed | 6400MT/s (PC5-51200) |
| CAS Latency | 34 |
| Module Count | 2 |
| Voltage | 1.4 V |
Physical
| RGB Lighting | No |
|---|
Module and platform
| RAM Segment | Desktop DDR5 |
|---|---|
| Form Factor | 288-Pin UDIMM (Desktop) |
| Buffering | No (Unbuffered DIMM) |
Capacity
| Capacity Per Module | 32 GB |
|---|
Speed and timings
| True Latency | 10.6 ns |
|---|
Overclocking profile
| XMP Support | Yes |
|---|---|
| XMP Version | XMP 3.0 |
| EXPO Support | Yes |
Silicon
| Memory IC | Micron |
|---|---|
| ECC | No |
Physical and lighting
| Module Height | 34.8 mm |
|---|---|
| Colour | Black |
Commercial
| Warranty | Limited Lifetime |
|---|
FAQs
What are the key specifications of the Crucial Pro Overclocking CP2K32G64C34U5 (64GB 2x32GB Kit/DDR5 6400MHz/CL34/1.4V/UDIMM/288-Pin)?
Key specs for the Crucial Pro Overclocking CP2K32G64C34U5: Capacity Per Module 32 GB, Capacity 64 GB, Speed 6400MT/s (PC5-51200), OC Profile XMP 3.0 + EXPO, Voltage 1.4 V, DDR Generation DDR5.
Will the Crucial Pro Overclocking CP2K32G64C34U5 (64GB 2x32GB Kit/DDR5 6400MHz/CL34/1.4V/UDIMM/288-Pin) work with my current setup?
The Crucial Pro Overclocking CP2K32G64C34U5 (64GB 2x32GB Kit/DDR5 6400MHz/CL34/1.4V/UDIMM/288-Pin) lists DDR Generation is DDR5. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits. Our upgrade checker at /upgrade can confirm compatibility for common combinations.
Who is the Crucial Pro Overclocking CP2K32G64C34U5 (64GB 2x32GB Kit/DDR5 6400MHz/CL34/1.4V/UDIMM/288-Pin) best suited to?
Best suited to: High-end gaming and streaming rigs; Content creators wanting maximum speed and capacity together; Enthusiasts who want cross-platform XMP/EXPO in one SKU; Low-clearance builds needing a low-profile flagship kit.
What are the drawbacks of the Crucial Pro Overclocking CP2K32G64C34U5 (64GB 2x32GB Kit/DDR5 6400MHz/CL34/1.4V/UDIMM/288-Pin)?
Not the best fit for: Budget or mid-range builds; RGB-themed showcase PCs; Systems where 32GB is already sufficient.