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Manufacturer: Corsair Last updated: 2026-09-14
Corsair CMK64GX5M4B5600C36 64GB Review
Need 64GB spread across four DIMM slots at a speed? The Corsair CMK64GX5M4B5600C36 is a 4x16GB DDR5-5600 CL36 Vengeance kit.
5600MT/s is a conservative, easy-to-run speed, which matters more with four modules populated since 4-DIMM DDR5 configurations are generally harder to run at high speed than 2-DIMM kits.
Performance
12.9ns true latency at 5600MT/s CL36 is a modest result, trailing Corsair's own CMK64GX5M4B6600C32 4-module kit (9.7ns) by a wide margin. The lower speed here is partly a trade-off for easier 4-DIMM stability.
Compatibility
Running four modules stresses the memory controller more than two, so the conservative 5600MT/s speed here is a sensible, stability-first choice for boards with all four DIMM slots populated. If your board only has two slots, a 2x32GB kit reaches the same 64GB more simply.
Our verdict
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- 4-DIMM-slot motherboards prioritizing stability over peak speed
- Budget-conscious 64GB builds across four modules
Not for
- 2-DIMM-slot boards, use a 2x32GB kit instead
Specifications
What these specs meanHow fast this kit is among DDR5 kits, rated from its speed and latency.
Identity
| Peak Bandwidth | 89.6 GB/s |
|---|---|
| Brand | Corsair |
| Part Number | CMK64GX5M4B5600C36 |
Memory
| DDR Generation | DDR5 |
|---|---|
| Capacity | 64 GB |
| Speed | 5600 MT/s |
| CAS Latency | 36 |
| Module Count | 4 |
Physical
| RGB Lighting | No |
|---|
Module and platform
| RAM Segment | Desktop DDR5 |
|---|---|
| Form Factor | Desktop DIMM |
| Platform Optimisation | AM5 |
Capacity
| Capacity Per Module | 16 GB |
|---|
Speed and timings
| True Latency | 12.9 ns |
|---|
Overclocking profile
| XMP Support | Yes |
|---|---|
| XMP Version | XMP 3.0 |
| EXPO Support | No |
Silicon
| Memory IC | Undisclosed |
|---|
Physical and lighting
| Colour | Black |
|---|
FAQs
What are the key specifications of the Corsair CMK64GX5M4B5600C36 64GB (4x16GB) DDR5 Desktop RAM Kit?
Key specs for the Corsair CMK64GX5M4B5600C36 64GB: Capacity Per Module 16 GB, Capacity 64 GB, Speed 5600 MT/s, OC Profile XMP 3.0, DDR Generation DDR5, Part Number CMK64GX5M4B5600C36.
Will the Corsair CMK64GX5M4B5600C36 64GB (4x16GB) DDR5 Desktop RAM Kit work with my current setup?
The Corsair CMK64GX5M4B5600C36 64GB (4x16GB) DDR5 Desktop RAM Kit 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 Corsair CMK64GX5M4B5600C36 64GB (4x16GB) DDR5 Desktop RAM Kit best suited to?
Best suited to: 4-DIMM-slot motherboards prioritizing stability over peak speed; Budget-conscious 64GB builds across four modules.
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