Corsair

Corsair CMP64GX5M2B6400C32 64GB

Capacity:: 64GB (2x32GB)
Speed:: 6400MT/s
CAS Latency:: CL32

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: October 9, 2026

Report an error

Corsair CMP64GX5M2B6400C32 64GB Review

The Corsair CMP64GX5M2B6400C32 is a 64GB (2x32GB) DDR5-6400 CL32 kit from Corsair's Dominator Titanium RGB line.

10.0ns true latency at 6400MT/s CL32 matches the tightest 6000MT/s CL30 kits while adding extra bandwidth, at the edge of AM5's comfortable range.

Performance

10.0ns true latency at 6400MT/s CL32 is a strong result for a 64GB kit, edging out most 6000MT/s options on bandwidth at equal latency.

Compatibility

6400MT/s sits at the upper edge of AM5's 1:1 fabric ratio range; current-generation boards handle it well, older ones may need to fall back.

Comparison to Alternatives

Corsair's own CMP64GX5M2B6000Z30 stays safely inside AM5's sweet spot at 6000MT/s CL30 with near-identical latency, a safer choice for older boards.

Our verdict

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

Best for

AM5 and Intel builds on current-generation boards wanting extra bandwidth

Not for

Older AM5 boards not validated for 6400MT/s at 1:1

Specifications

What these specs mean

Speed Score

8.8/10

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

Identity

Peak Bandwidth	102.4 GB/s
Brand	Corsair
Part Number	CMP64GX5M2B6400C32

Memory

DDR Generation	DDR5
Capacity	64 GB
Speed	6400 MT/s
CAS Latency	32
Module Count	2

Physical

RGB Lighting	Yes

Module and platform

RAM Segment	Desktop DDR5
Form Factor	Desktop DIMM
Platform Optimisation	AM5

Capacity

Capacity Per Module	32 GB

Speed and timings

True Latency	10.0 ns

Overclocking profile

XMP Support	Yes
XMP Version	XMP 3.0
EXPO Support	No

Silicon

Memory IC	Undisclosed

FAQs

What are the key specifications of the Corsair CMP64GX5M2B6400C32 64GB (2x32GB)?

Key specs for the Corsair CMP64GX5M2B6400C32 64GB: Capacity Per Module 32 GB, Capacity 64 GB, Speed 6400 MT/s, OC Profile XMP 3.0, DDR Generation DDR5, Part Number CMP64GX5M2B6400C32.

Will the Corsair CMP64GX5M2B6400C32 64GB (2x32GB) work with my current setup?

The Corsair CMP64GX5M2B6400C32 64GB (2x32GB) 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 CMP64GX5M2B6400C32 64GB (2x32GB) best suited to?

Best suited to: AM5 and Intel builds on current-generation boards wanting extra bandwidth.

What are the drawbacks of the Corsair CMP64GX5M2B6400C32 64GB (2x32GB)?

Not the best fit for: Older AM5 boards not validated for 6400MT/s at 1:1.