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Corsair CMK64GX5M2X6800C32 64GB (2x32GB) DDR5-6800 CL32 Desktop RAM Kit DDR5 memory kit
Corsair

Corsair CMK64GX5M2X6800C32 64GB

View on corsair.com
Capacity:
64GB (2x32GB)
Speed:
6800MT/s
CAS Latency:
CL32

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Manufacturer: Corsair Last updated: 2026-09-14

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Corsair CMK64GX5M2X6800C32 64GB Review

Want 64GB of DDR5 with genuinely high bandwidth for an Intel build? The Corsair CMK64GX5M2X6800C32 is a matched 2x32GB Vengeance kit at DDR5-6800 CL32.

9.4ns true latency is excellent, and 6800MT/s is past the range most AM5 boards run at 1:1, so this kit is really built for Intel platforms (or AM5 boards specifically validated well past 6400MT/s) rather than a typical Ryzen build.

Compatibility and Buying Advice

On AM5, 6800MT/s is past where most Ryzen 7000/9000 boards hold the 1:1 fabric ratio, so this kit is best suited to Intel platforms (which have no such ceiling) or an AM5 board specifically validated for this speed. Don't buy this for a typical AM5 gaming build, CMK64GX5M2B6000C30 at 6000MT/s CL30 will likely perform better in games on that platform despite the lower rated speed.

Speed and Latency

CL32 at 6800MT/s works out to 9.4ns of true latency (32 / (6800 / 2) x 1000). Only 10% of the desktop DDR5 kits we track are as tight or tighter.

Our verdict

Reviewed by Burooj Alam. Rated by us, not by users.

Best for

  • Intel builds wanting maximum 64GB bandwidth and low latency
  • AM5 boards specifically validated for 6800MT/s and above

Not for

  • Typical AM5 gaming builds, CMK64GX5M2B6000C30 at 6000MT/s CL30 is the better real-world performer
  • Anyone wanting RGB lighting

Specifications

What these specs mean
Speed Score
9.0/10

How fast this kit is among DDR5 kits, rated from its speed and latency.

Identity

Peak Bandwidth108.8 GB/s
BrandCorsair
Part NumberCMK64GX5M2X6800C32

Memory

DDR GenerationDDR5
Capacity64 GB
Speed6800 MT/s
CAS Latency32
Module Count2

Physical

RGB LightingNo

Module and platform

RAM SegmentDesktop DDR5
Form FactorDesktop DIMM
Platform OptimisationIntel

Capacity

Capacity Per Module32 GB

Speed and timings

True Latency9.4 ns

Overclocking profile

XMP SupportYes
XMP VersionXMP 3.0
EXPO SupportNo

Silicon

Memory ICUndisclosed

Physical and lighting

ColourBlack

FAQs

What are the key specifications of the Corsair CMK64GX5M2X6800C32 64GB (2x32GB) DDR5-6800 CL32 Desktop RAM Kit?

Key specs for the Corsair CMK64GX5M2X6800C32 64GB: Capacity Per Module 32 GB, Capacity 64 GB, Speed 6800 MT/s, OC Profile XMP 3.0, DDR Generation DDR5, Part Number CMK64GX5M2X6800C32.

Will the Corsair CMK64GX5M2X6800C32 64GB (2x32GB) DDR5-6800 CL32 Desktop RAM Kit work with my current setup?

The Corsair CMK64GX5M2X6800C32 64GB (2x32GB) DDR5-6800 CL32 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 CMK64GX5M2X6800C32 64GB (2x32GB) DDR5-6800 CL32 Desktop RAM Kit best suited to?

Best suited to: Intel builds wanting maximum 64GB bandwidth and low latency; AM5 boards specifically validated for 6800MT/s and above.

What are the drawbacks of the Corsair CMK64GX5M2X6800C32 64GB (2x32GB) DDR5-6800 CL32 Desktop RAM Kit?

Not the best fit for: Typical AM5 gaming builds, CMK64GX5M2B6000C30 at 6000MT/s CL30 is the better real-world performer; Anyone wanting RGB lighting.

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