Corsair CMK64GX5M2B6000C40 64GB
- DDR Generation:
- DDR5
- Capacity:
- 64GB (2x32GB)
- Speed:
- 6000 MT/s
- CAS Latency:
- CL40
Consumercarts is reader-supported. Learn more
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Manufacturer: Corsair Last updated: 2026-09-14
Corsair CMK64GX5M2B6000C40 64GB (2x32GB) DDR5 Desktop RAM Kit Review
Looking for a 64GB DDR5-6000 dual-channel kit for content creation or heavy multitasking? The Corsair CMK64GX5M2B6000C40 is a matched 2x32GB Vengeance kit at that speed.
6000MT/s at the AM5 sweet spot with 64GB of headroom — CL40 timings are looser than the CL30/CL36 kits Corsair also sells at 6000MT/s, so this trades a bit of latency for what's typically a lower price at the same capacity and speed.
Performance
13.3ns true latency at 6000MT/s CL40 is a middling result for this speed — Corsair's own CMK64GX5M2B6000C30 kit hits 10.0ns at the identical 6000MT/s, so if pure latency matters more than price, that CL30 kit is the better pick at the same capacity.
Compatibility and Buying Advice
6000MT/s lands right at the AM5 1:1 fabric ratio regardless of CAS latency, so compatibility isn't a concern here. Choose this CL40 kit over the CL30 version when it's meaningfully cheaper; otherwise the tighter-timed kit is worth the extra cost.
Specifications
Identity
| Brand | Corsair |
|---|---|
| Part Number | CMK64GX5M2B6000C40 |
Memory
| DDR Generation | DDR5 |
|---|---|
| Capacity | 64 GB |
| Speed | 6000 MT/s |
| CAS Latency | 40 |
| Module Count | 2 |
Physical
| Form Factor | Desktop DIMM |
|---|---|
| RGB Lighting | No |
Module and platform
| RAM Segment | Desktop DDR5 |
|---|
Capacity
| Capacity Per Module | 32 GB |
|---|
Speed and timings
| True Latency | 13.3 ns |
|---|
Silicon
| Memory IC | Undisclosed |
|---|
Physical and lighting
| Colour | Black |
|---|
| Platform Sweet Spot | AM5 |
|---|---|
| Spec Score | 5.5 |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- Content creation, video editing, and VM-heavy workstations needing 64GB
- Buyers prioritizing capacity and price over the tightest possible timings
Not for
- Buyers who want the tightest 6000MT/s timings — see CMK64GX5M2B6000C30 (CL30) instead
- Anyone wanting RGB lighting
FAQs
What are the key specifications of the Corsair CMK64GX5M2B6000C40 64GB (2x32GB) DDR5 Desktop RAM Kit?
The Corsair CMK64GX5M2B6000C40 64GB (2x32GB) DDR5 Desktop RAM Kit is a memory kit from Corsair. Key specs: DDR Generation DDR5, Capacity 64GB (2x32GB), Speed 6000MT/s, CAS Latency 40, Module Count 2.
Will the Corsair CMK64GX5M2B6000C40 64GB (2x32GB) DDR5 Desktop RAM Kit work with my current setup?
The Corsair CMK64GX5M2B6000C40 64GB (2x32GB) 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 CMK64GX5M2B6000C40 64GB (2x32GB) DDR5 Desktop RAM Kit best suited to?
It suits content creation, video editing, and vm-heavy workstations needing 64gb, buyers prioritizing capacity and price over the tightest possible timings.
What are the drawbacks of the Corsair CMK64GX5M2B6000C40 64GB (2x32GB) DDR5 Desktop RAM Kit?
It is a poor fit for buyers who want the tightest 6000mt/s timings — see cmk64gx5m2b6000c30 (cl30) instead, anyone wanting rgb lighting.
Compare and read more
- ADATA AO2V48UC8W1-BHLS 8GB vs Corsair CMK64GX5M2B6000C40 64GB (2x32GB) DDR5 Desktop RAM Kit
- ADATA AX5U5200C3816G-B 16GB DDR5-5200 CL38 Bare/Tray Module vs Corsair CMK64GX5M2B6000C40 64GB (2x32GB) DDR5 Desktop RAM Kit
- ADATA Industrial AD4U3200716G22-BADZ (16GB DDR4-3200 ECC UDIMM/2Rx8/1.2V/288-Pin/Industrial-Grade) vs Corsair CMK64GX5M2B6000C40 64GB (2x32GB) DDR5 Desktop RAM Kit