Corsair Vengeance RGB CMH32GX5M2B6400C36 (32GB 2x16GB Kit/DDR5 6400MHz/CL36/1.40V/RGB Anodized Aluminium Black/Intel XMP 3.0 + AMD EXPO)
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- Model:
- Corsair Vengeance RGB|CMH32GX5M2B6400C36|B Revision
- Capacity:
- 32GB|2x16GB Kit|16GB per Module
- Memory Type:
- DDR5|288-Pin DIMM|Non-ECC|Unbuffered
- Speed:
- 6400MHz|PC5-51200
- Timings:
- CL36
- Voltage:
- 1.40V
- Overclocking:
- Intel XMP 3.0|AMD EXPO
- Heat Spreader:
- Anodized Aluminum|RGB Light Bar|iCUE Controlled
- Color Options:
- Black|White
- Form Factor:
- Desktop DIMM
- Compatibility:
- Intel and AMD DDR5 Platforms|XMP 3.0 and EXPO Support
- Warranty:
- Limited Lifetime
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: September 7, 2026
The Corsair Vengeance RGB CMH32GX5M2B6400C36 is a 32GB (2x16GB) DDR5 kit running above the 6000MHz tier most Corsair DDR5 kits are built around, at 6400MHz with CL36 timings and 1.40V operating voltage. It's aimed at platforms and CPUs with headroom above the AMD-optimal 6000MHz fabric ratio, primarily recent Intel Core Ultra 200 systems and higher-end Ryzen boards that support memory speeds above the standard 1:1 fabric sweet spot.
This is a step into genuinely higher-frequency DDR5 territory rather than the price-to-performance mainstream most buyers land on, and it carries the voltage bump to 1.40V that generally comes with pushing DDR5 past 6000MHz.
Performance and Timings
CL36 at 6400MHz gives roughly 11.25ns true latency, tighter than a CL36 kit at 6000MHz purely because the higher frequency compresses the same CAS count into less real time. This is a genuinely faster kit in raw bandwidth terms than the 6000MHz options covered elsewhere on this site, though the practical gain depends heavily on whether the target platform runs its memory controller comfortably at this speed without decoupling from a 1:1 fabric ratio. On AMD boards specifically, running above 6000MHz generally means the infinity fabric clock no longer tracks memory speed at a clean 1:1 ratio, which can offset some of the raw bandwidth gain. On Intel platforms without that fabric-ratio constraint, 6400MHz is a more straightforward upgrade over 6000MHz.
Compatibility
DDR5 only. Enable XMP 3.0 on Intel or EXPO on AMD to reach 6400MHz. This is a higher speed grade than Corsair's mainstream 6000MHz kits, so motherboard QVL support matters more here: check the board's memory compatibility list specifically for 6400MHz support before buying, since not every DDR5 board that handles 6000MHz cleanly will hold 6400MHz at these timings without manual adjustment.
Module Count and Rank
Two 16GB modules. Buy the full 32GB in one matched kit; this is even more important at higher DDR5 frequencies, where mixing kits is more likely to cause instability than at the more thoroughly validated 6000MHz tier.
Design and Build
Standard Vengeance RGB heat spreader and per-module light bar, controlled through iCUE, available in this black finish alongside white. Build and finish match the rest of the Vengeance RGB DDR5 range; the differentiator here is entirely the higher rated frequency.
Overclocking and BIOS Setup
Boots at JEDEC baseline until XMP or EXPO is enabled. Select the correct profile, choose the 6400MHz CL36 setting, save, reboot, verify in CPU-Z. Given this sits above Corsair's mainstream 6000MHz tier, confirm the board's QVL lists 6400MHz support before assuming the XMP or EXPO profile will apply cleanly on first boot; a BIOS update is worth doing beforehand regardless of platform.
Comparison to Sibling Products
Against Corsair's 6000MHz CL30 kit, this trades a small amount of true latency advantage for meaningfully higher raw frequency, a trade that favours Intel platforms without a fabric-ratio ceiling more than it favours mainstream AM5 builds. The 64GB version of this same 6400MHz CL32 speed grade, covered elsewhere on this site, is the higher-capacity step up within the same frequency tier.
Who This Kit Is Actually For
Intel Core Ultra 200 and other platforms without a memory-fabric ratio ceiling. 6400MHz is a cleaner upgrade path here than on mainstream AM5. Buyers deliberately shopping above the 6000MHz mainstream tier. For workloads that scale with raw memory bandwidth rather than just latency. Not for standard AM5 builds chasing the best price-to-performance. The 6000MHz CL30 kit generally delivers more real-world benefit per dollar on Ryzen 7000/9000 specifically, given the fabric-ratio ceiling. Not for anyone unsure their board supports 6400MHz. Check the QVL before buying; this is a step above the most broadly validated DDR5 speed tier.
Expert Review
Rated by the Consumercarts editorial team, not by users
Best for
- Intel Core Ultra 200 and other platforms without a memory-fabric ratio ceiling
- Buyers deliberately shopping above the 6000MHz mainstream tier
Not for
- standard AM5 builds chasing the best price-to-performance
- anyone unsure their board supports 6400MHz