Corsair Dominator Titanium RGB 64GB (2x32GB) DDR5-6000 CL30

The Corsair Dominator Titanium RGB 64GB (2x32GB) DDR5-6000 CL30 kit, part number CMP64GX5M2B6000Z30, is a two-module DDR5 memory set from Corsair's flagship Dominator Titanium line. It is built for enthusiast desktops and workstations that need a large amount of memory at a fast, well-supported speed, and it carries both AMD EXPO and Intel XMP profiles so the same kit can serve either platform. Corsair's product page also describes the Dominator Titanium family as combining premium forged aluminium construction with addressable lighting. This page explains the published specification, how to read the timings, and the practical points around clearance, compatibility and warranty.

Headline specification

The kit provides 64 GB in a dual-channel two-module arrangement of 32 GB each. Corsair lists a tested speed of 6000 MT/s, which corresponds to the PC5-48000 rating, with tested timings of CL30-36-36-76 at 1.40 V. Without a profile enabled, the memory runs at the JEDEC baseline: Corsair's FAQ states that the default is 4800 MT/s with 40-40-40-77 timings at 1.1 V, and that reaching the rated 6000 MT/s requires enabling EXPO or XMP in the motherboard BIOS. The module format is UDIMM, meaning standard unbuffered desktop memory. The part number contains a B, which Corsair says indicates an overclocked power management IC (PMIC) supporting up to 1.435 V on the module's main rails. In DDR5, voltage regulation is done on the memory module rather than on the motherboard, so this component is part of how the kit sustains its overclocked profile.

Reading DDR5-6000 CL30

DDR5-6000 with a CAS latency of 30 is widely used as a sweet spot for current mainstream desktop platforms, and Corsair's own guidance pages recommend DDR5-6000 kits for AMD's recent Ryzen processors. As a rough conversion, real latency in nanoseconds equals CL multiplied by 2000 and divided by the data rate: CL30 at 6000 MT/s is about 10 ns, our own arithmetic from the stated numbers. Timings are quoted in clock cycles, so a kit with a higher speed and a higher CL can be equal in real terms. Our explainer on RAM speed versus latency covers this, and the difference between the EXPO and XMP profile formats is described in our article on XMP and EXPO profiles. Both profiles are stored on the modules, so the BIOS presents whichever one your platform understands.

Compatibility

Corsair states that the kit is validated for AMD 600 and 800 series motherboards and for Intel 600, 700 and 800 series motherboards. Because it is a two-module kit tested as a matched pair, Corsair strongly advises against combining it with a second kit to reach 128 GB, even if the part number is identical, citing possible stability issues at high frequency; if you need 128 GB, the company recommends buying a single validated 128 GB kit. Corsair also offers a Memory Finder tool to check specific motherboards, and the motherboard's own memory support list remains the authoritative source. For example, the AM5 platform used by processors such as the Ryzen 7 9800X3D supports DDR5 only, and running two modules is normally the easiest configuration for reaching rated speed.

Cooling and the removable top bar

The Dominator Titanium heatspreader is made of die-cast aluminium, and Corsair uses its patented DHX cooling technology, which dissipates heat through the external heatspreader and also through a specially designed PCB that conducts heat away from the memory chips via the board's ground plane. Corsair says that the memory chips are hand-sorted and tightly screened and that a custom high-performance PCB supports signal quality for overclocking. The safe operating temperature range Corsair gives for its DDR5 memory is 0 to 95 degrees Celsius, and iCUE software can monitor the module temperatures.

Height is the main practical concern. With the default RGB top bar fitted, the module stands 57 mm tall, which can clash with large air coolers, and Corsair recommends an AIO liquid cooler, specifically 240 mm or 360 mm formats, for the widest compatibility. The top bar is user-replaceable and can be removed with an H1.5 hex key; Corsair says that doing so reduces the module height by almost a third without impairing cooling, because the main DHX cooling happens in the body. Official fin accessory kits are available, and Corsair supplies CAD files so that owners can 3D-print their own top bars.

Lighting and software

The modules use addressable RGB LEDs controlled through Corsair's iCUE software, which also provides real-time temperature, voltage and frequency monitoring. Corsair notes that DDR5 support requires iCUE version 4.17 or newer, and that lighting effects can be set in hardware so they run even when iCUE is not open, for example during boot. iCUE also includes a preview feature for custom XMP profiles, currently limited to certain Gigabyte and ASRock DDR5 boards; the company warns that custom profiles are a form of overclocking and can cause instability.

Family context and typical uses

Corsair's page describes Dominator Titanium as its current flagship DDR5 family, with speeds up to 8000 MT/s in the range, against a top speed of 6800 MT/s for the earlier Dominator Platinum RGB DDR5 line. The design introduces a diffused lighting effect spread evenly across 11 addressable LEDs, the user-replaceable top bar and a more streamlined look, while keeping DHX cooling and iCUE control. For this specific 64 GB kit, Corsair's suggested uses are content creation and productivity work that benefit from 64 GB or more of memory, gaming builds that want fast DDR5 with a one-click profile, and showcase builds that put the lighting in view. Two 32 GB modules also leave the other two slots of a four-slot board free, although Corsair advises against mixing in a second kit.

Warranty and support

The kit has a limited lifetime warranty covering defects in materials and workmanship. It applies to the original purchaser and is not transferable, and a claim is made by opening an RMA ticket with proof of purchase and a photograph of the serial number. If one module of a kit fails, Corsair's policy requires the whole kit to be returned, and lot codes must match on all modules.

Where it fits

This is a premium capacity-and-speed kit: 64 GB suits video editing, virtual machines, large datasets or heavy multitasking, while 6000 MT/s with CL30 is a well-supported target on both major platforms. It is more expensive than the older Corsair Vengeance RGB DDR5-6000 32GB kit and offers double the capacity plus DHX cooling and a more customisable design. For the high-clock alternative aimed at Intel Core Ultra platforms, see the Trident Z5 CK versus Dominator Titanium comparison, and browse the memory category for other kits. All specifications are taken from Corsair's product page; availability, colours and prices vary by region and change over time.

Product image: CORSAIR product image.