Corsair CMH64GX5M2B6600C32 64GB
- Summary:
- 64GB (2x32GB) DDR5-6600 CL32 Vengeance RGB Kit
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Manufacturer: Corsair Last updated: 2026-09-14
Corsair CMH64GX5M2B6600C32 64GB (2x32GB) DDR5 Vengeance RGB Desktop RAM Kit Review
Need a high-bandwidth 64GB DDR5 RGB kit for an Intel build? The Corsair CMH64GX5M2B6600C32 is a matched 2x32GB Vengeance RGB kit at DDR5-6600 CL32.
9.7ns true latency is genuinely excellent, but 6600MT/s is past where most AM5 boards hold the 1:1 fabric ratio, so this kit makes the most sense on Intel or a specifically validated AM5 board.
Performance
9.7ns true latency at 6600MT/s CL32 is among the best in Corsair's RGB lineup, beating the 6000MT/s RGB kits on raw latency.
Compatibility and Buying Advice
On AM5, 6600MT/s typically forces a 2:1 fabric ratio, which can hurt gaming performance despite the higher rated speed. Intel platforms have no such ceiling and are the better fit here.
Specifications
Identity
| Brand | Corsair |
|---|---|
| Part Number | CMH64GX5M2B6600C32 |
Memory
| DDR Generation | DDR5 |
|---|---|
| Capacity | 64 GB |
| Speed | 6600 MT/s |
| CAS Latency | 32 |
| Module Count | 2 |
Physical
| Form Factor | Desktop DIMM |
|---|---|
| RGB Lighting | Yes |
Module and platform
| RAM Segment | Desktop DDR5 |
|---|
Capacity
| Capacity Per Module | 32 GB |
|---|
Speed and timings
| True Latency | 9.7 ns |
|---|
Silicon
| Memory IC | Undisclosed |
|---|
Physical and lighting
| Colour | Black |
|---|
| Platform Sweet Spot | Intel |
|---|---|
| Spec Score | 7.2 |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- Intel builds wanting maximum 64GB bandwidth, low latency, and RGB lighting
- AM5 boards specifically validated for 6600MT/s and above
Not for
- Typical AM5 gaming builds — a 6000MT/s kit like CMH64GX5M2B6000C30 is the better real-world performer
FAQs
What are the key specifications of the Corsair CMH64GX5M2B6600C32 64GB (2x32GB) DDR5 Vengeance RGB Desktop RAM Kit?
The Corsair CMH64GX5M2B6600C32 64GB (2x32GB) DDR5 Vengeance RGB Desktop RAM Kit is a memory kit from Corsair. Key specs: DDR Generation DDR5, Capacity 64GB (2x32GB), Speed 6600MT/s, CAS Latency 32, Module Count 2.
Will the Corsair CMH64GX5M2B6600C32 64GB (2x32GB) DDR5 Vengeance RGB Desktop RAM Kit work with my current setup?
The Corsair CMH64GX5M2B6600C32 64GB (2x32GB) DDR5 Vengeance RGB 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 CMH64GX5M2B6600C32 64GB (2x32GB) DDR5 Vengeance RGB Desktop RAM Kit best suited to?
It suits intel builds wanting maximum 64gb bandwidth, low latency, and rgb lighting, am5 boards specifically validated for 6600mt/s and above.
What are the drawbacks of the Corsair CMH64GX5M2B6600C32 64GB (2x32GB) DDR5 Vengeance RGB Desktop RAM Kit?
It is a poor fit for typical am5 gaming builds — a 6000mt/s kit like cmh64gx5m2b6000c30 is the better real-world performer.