Corsair

Corsair CMK64GX5M4B6600C32 VENGEANCE 64GB DDR5 RAM

4.6 (203 reviews)
64GB DDR5

Corsair's 64GB DDR5-6600 VENGEANCE kit pushes four-channel 6600MHz bandwidth to your CPU with Intel XMP 3.0 and onboard voltage regulation for stable overclocking.

$999.99*
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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

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Overview

The CORSAIR VENGEANCE CMK64GX5M4B6600C32 is a 64GB DDR5 kit running four 16GB modules at 6600MHz with CL32 timings. To understand what that means practically: DDR5's base JEDEC specification sits at 4800MHz, which already doubles the per-channel bandwidth of DDR4-3200. Pushing that to 6600MHz via Intel XMP 3.0 adds another 37% bandwidth on top of base DDR5 — and on modern CPUs with high core counts, that bandwidth translates directly into faster rendering throughput, shorter simulation cycle times, and reduced memory bottlenecking in multi-threaded workloads. The onboard PMIC handles voltage regulation at the module level rather than delegating it to the motherboard, which means more consistent behavior at the frequency and voltage headroom where 6600MHz operation lives.

This kit targets high-end Intel LGA 1700 platform builders — workstation operators, content creators, and performance gamers who have spec'd a Core i7 or i9 and want memory that keeps pace with the processor's bandwidth appetite. The quad-channel 4x16GB configuration fills the memory controller's lanes completely, and the compact aluminum heatspreader stays out of conflict with large cooling hardware that higher-profile DDR5 kits can obstruct. CORSAIR iCUE integration gives advanced users real-time frequency visibility and custom XMP profile storage for application-specific tuning, but the kit runs at full rated speed from a BIOS XMP toggle alone — no software dependency required for the core performance benefit. It's a mature, well-executed DDR5 kit for builders who know exactly what they're speccing into.

Key Features

Do it All, and Do it Faster: As modern CPUs feature more and more cores, the unprecedented speed of DDR5 ensures your high-end CPU gets data quickly, enabling faster processing, rendering, and buffering than ever before.

Onboard Voltage Regulation: Makes for easier, more finely-tuned, and more stable overclocking through CORSAIR iCUE software than previous generation motherboard control.

Custom Intel XMP 3.0 Profiles: Customize and save your own XMP profiles via iCUE to tailor performance by app or task for greater efficiency.

Powerful CORSAIR iCUE Software: Enables real-time frequency readings, onboard voltage regulation, and custom XMP profiles.

Compact Form-Factor: Low clearance ensures wide compatibility with nearly any DDR5 build.

Specifications

Memory Type
DDR5 RAM
Capacity
64GB
Model
VENGEANCE
Frequency
6600C32
Overclocking Control
CORSAIR iCUE Software
XMP Profiles
Custom Intel XMP 3.0
Form-Factor
Compact

Pros & Cons

👍 Pros

  • 6600MHz DDR5 frequency delivers substantially higher memory bandwidth than base JEDEC DDR5-4800, directly benefiting CPU-bound rendering, simulation, and high core-count workflows
  • Onboard PMIC voltage regulation provides more stable overclocking behavior than motherboard-controlled voltage found on earlier DDR4 kits, reducing the variance that causes instability at high frequencies
  • The low-clearance heatspreader profile ensures compatibility with oversized air coolers and 240/360mm AIO mounts that conflict with tall DDR5 kits
  • Intel XMP 3.0 support allows BIOS one-click activation of the rated 6600MHz profile — no manual timing entry required for plug-in performance
  • 64GB across four 16GB modules saturates the quad-channel memory controller on LGA 1700 and compatible platforms, maximizing total available bandwidth

👎 Cons

  • XMP 3.0 optimization targets Intel platforms — AMD systems will not run this kit at the rated 6600MHz speed without manual configuration or potential instability
  • Running at 6600MHz and 1.4V generates more heat than base-speed DDR5, making case airflow and memory slot positioning meaningfully relevant in compact builds
  • The 6600MHz XMP profile requires a compatible Z-series Intel motherboard — budget H-series or B-series boards may not support the full advertised frequency
  • At 64GB in a 4x16GB configuration, all memory slots are occupied, eliminating the option to expand capacity without replacing the entire kit
  • CORSAIR iCUE software, while optional, adds a background system process and occasional driver dependency that some users prefer to avoid on performance-critical machines

Frequently Asked Questions

This kit is optimized for Intel platforms with XMP 3.0 support. AMD's DDR5 platforms use EXPO profiles rather than XMP for memory overclocking. While the kit may run at JEDEC speeds on AMD systems, the advertised 6600MHz XMP profiles are Intel-specific — do not assume full performance on AMD without verifying EXPO compatibility with your specific board.
Traditional DDR4 kits relied on the motherboard's memory controller to regulate voltage — introducing variance that could affect overclocking stability. The VENGEANCE DDR5's onboard PMIC (power management IC) handles voltage regulation on the module itself, giving CORSAIR iCUE finer, more stable control. The result is cleaner overclocking headroom and more consistent behavior at high frequencies like 6600MHz.
Yes. Corsair specifically describes this kit as a compact, low-clearance form factor. The solid aluminum heatspreader is kept slim to ensure compatibility with large tower air coolers and all-in-one liquid cooling mounts that would conflict with tall RGB heatspreader designs.
This kit runs CL32 at 6600MHz. CAS latency in nanoseconds is what matters for real-world access time — at 6600MHz CL32, absolute latency is approximately 9.7ns, which is competitive with DDR5-4800 CL30 kits running at lower frequency. The bandwidth advantage of 6600MHz more than compensates in throughput-sensitive workloads.
The kit runs at rated 6600MHz speed via Intel XMP 3.0 profile loaded in your BIOS — no iCUE software required for basic performance. iCUE is optional but enables custom XMP profile creation, real-time frequency monitoring, and onboard voltage regulation tuning beyond what XMP presets provide.