Corsair Dominator Platinum RGB DDR5 review: dominating performance and style

The Corsair Dominator Platinum RGB DDR5 offers outstanding performance and aesthetics

Corsair Dominator Platinum RGB DDR5 RAM inserted into a motherboard
Best in Class
(Image: © Future / John Loeffler)

TechRadar Verdict

Good looking and better performing, the Corsair Dominator Platinum RGB DDR5 RAM kit is a must have for any discerning gamer who likes a little RGB in their build. Just be prepared to pay a bit of a premium for all that flash.


  • +

    Fantastic performance

  • +

    Appealing design

  • +

    Intel XMP


  • -


  • -

    Only comes in kits

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Corsair Dominator Platinum RGB DDR5: Two-minute review

The Corsair Dominator Platinum RGB DDR5 RAM kit has been an integral part of my component testing process for more than a year, so I cannot think of any better endorsement than that.

It is simply the best RAM for the job, whether it's for testing the best processors or best graphics cards. And while I've been lucky enough for Corsair to give TechRadar a number of RAM kits to use over the years, even if it didn't, I would still have us go out and buy this RAM ourselves for use on our testing bench.

Corsair Dominator Platinum RGB DDR5 RAM inserted into a motherboard

(Image credit: Future / John Loeffler)

Whether it's about compatibility or performance, Corsair's Dominator series of RAM kits have always been ideal for just about any midrange to premium build, and that is still very much the case. Starting at $144.99 / £134.99 (about AU$220) for a 32GB kit (2 x 16GB) running at 5,200MHz, you are paying something of a premium for this RAM, even more than you normally would for a DDR5 kit. 

There are cheaper kits out there if you're willing to skip some of the extras you find here like RGB lighting and heat dissipation. That includes the Corsair Vengence DDR5 kits, which you can get for as low as $109.99 (about for a 32GB kit running at 4,800MHz.

None of them will look this good though, as the exceptionally clean lines of the Dominator Platinum RGB module create a really incredible aesthetic in your case if you fill the available slots with them. Available in either black or white, this RAM will make any case truly pop thanks to customizable RGB lighting effects to go along with the rest of your components.

Corsair Dominator Platinum RGB DDR5 RAM inserted into a motherboard

(Image credit: Future / John Loeffler)
A Note on Testing

Some motherboards aren't compatible with some modules under dual-channel configurations, while others will limit the speed of the DDR5 RAM when run in pairs, so needless to say it's hard to give quantifiable data to demonstrate the Dominator Platinum RGB DDR5's performance in a way that makes it comparable across different systems. 

For this reason, we only benchmark a single DDR5 module to get comparable performance figures. This does mean that adding a second module will offer substantially better performance in real-world usage. We also only compare modules to other modules running at the same speed and memory profile (XMP/EXPO).

Now, one thing to note about double data rate (DDR) memory is that it works best in pairs (which is why this RAM is almost always sold in kits of two or four), but every motherboard, processor, and system configuration is going to have a huge impact on what kind of performance you are going to get from your RAM kit, even beyond the speed of the RAM itself.

In this regard, Corsair's Dominator Platinum RGB DDR5 kits are about as widely supported as you're going to get, and they have always run at their top speed no matter which motherboard I've used in testing.

In terms of performance, the Dominator Platinum RGB DDR5 runs neck-and-neck with the best DDR5 RAM kits out there, like the Kingston Fury Beast kit, often beating it out all while using lower total power in the process.

As you increase the speed of the module you pick up, the performance will only improve from there. But as you can see, the performance of the Dominator Platinum RGB is a noticeable step up from the lower-tier Vengence DDR5 and is more or less even with the Kingston Fury Beast DDR5, which has a slightly higher MSRP.

Swipe to scroll horizontally
Header Cell - Column 0 Corsair Dominator Platinum RGBCorsair VengenceKingston Fury Beast
PassMark Memory Test3,1193,1493,084
AIDA64 Read (MB/s)42,75242,24143,052
AIDA64 Write (MB/s)37,03537,22336,955
AIDA64 Copy (MB/s)39,71939,84139,721
Row 4 - Cell 0 Row 4 - Cell 1 Row 4 - Cell 2 Row 4 - Cell 3
PassMark Latency (ns)434344
AIDA64 Latency (ns)80.178.781.7
Max VDDQ Voltage1.245V1.245V1.245V
Max Total Power3.375W3.625W4.375W

In all, the Corsair Dominator Platinum RGB DDR5 kit offers a phenomenal balance of price, performance, and aesthetics to make it the baseline standard for what a DDR5 module should offer. It continues Corsair's legacy of high-quality PC components.

Corsair Dominator Platinum RGB DDR5: Price & availability

Corsair Dominator Platinum RGB DDR5 RAM with its retail packaging

(Image credit: Future / John Loeffler)
  • How much does it cost? Starting at $144.99 / £134.99 / about AU$220
  • When is it available? Available now
  • Where can you get it? Available in the US, UK, and Australia

The Dominator Platinum RGB kit we're looking at here is the 5,200MHz Intel XMP model, though you can get 32GB kits as fast as 7,800 mega transfers a second (MT/s) with Intel XMP 3.0 for $224.99 (about £180/AU$340). 

The fastest AMD EXPO kit you can get is somewhat slower at 6,000 MT/s, with a 64GB (2 x 32GB) kit costing you $269.99 (about £220/AU$400) and a 32GB kit (2 x 16GB) costing you $174.99 (about £140/AU$265).

This puts it about 36% more expensive to start than the slightly lower-tier Corsair Vengence DDR5 modules at the same capacity and speed. However, it is marginally cheaper than Kingston's competing Fury Beast DDR5 modules, which have an MSRP of $159.99 (about £130/AU$240) for a 32GB (2 x 16GB) kit of 5,200 MT/s DDR5 with Intel XMP.

Corsair Dominator Platinum RGB DDR5: Specs

Swipe to scroll horizontally
Header Cell - Column 0 Base ModuleAs reviewedTop spec
Price (US/UK/AU)$144.99 / £134.99 / about AU$220$149.99 / £144.99 / about AU$230$224.99 / £214.99 / AU$340
Part NumberCMT32GX5M2A4800C40CMT32GX5M2B5200C40CMT32GX5M2X7800C36
Speed (dual-channel)4,800MHz5,200MHz7,800 MT/s
Module size16GB16GB16GB
Module per kit222
Default Timing40-40-40-7740-40-40-7736-46-46-86

Should you buy the Corsair Dominator Platinum RGB DDR5?

A man's hand holding a stick of Corsair Dominator Platinum RGB DDR5 RAM

(Image credit: Future / John Loeffler)
Swipe to scroll horizontally
ValueWhile not the cheapest RAM, it's not the most expensive either.3.5 / 5
DesignLooks great in a build, and the nice clean lines of the modules work great in a full four-stick setup4.5 / 5
PerformanceGoes toe-to-toe with the fastest DDR5 modules out there, all for less total power.5 / 5
Average ratingRow 3 - Cell 1 4.34 / 5

Buy it if...

You want high performance DDR5
The Corsair Dominator Platinum RGB DDR5 is about as fast and high-performance as you're going to find on the consumer market.

You want great looking RGB modules
The clean lines, color options, and RGB customization options for the Dominator Platiunum RGB make it the best looking RAM you can get.

Don't buy it if...

You're on a budget
This is one of Corsair's most expensive RAM kits, so you can get almost the same phenomenal performance with the Vengence DDR5 kits as you could here for much less. 

You want just a single stick of RAM
Sometimes, you don't need a full 2-stick kit, but in the case of the Dominator Platinum RGB DDR5, you can only get it in pairs.

Corsair Dominator Platinum RGB DDR5: Also consider

Swipe to scroll horizontally
Header Cell - Column 0 Corsair Dominator Platinum RGB DDR5Corsair Vengence DDR5Kingston Fury Beast DDR5
Starting price (US/UK/AU)$144.99 / £134.99 / about AU$220$109.99 / £104.99 / about AU$165$159.99 (about £130/AU$240)
Part NumberCMT32GX5M2A4800C40CMK32GX5M2A4800C40KF548C38BBK2-32
Speed (dual-channel)4,800MHz4,800MHz4,800MT/s
Module sizes16GB, 32GB16GB, 24GB, 32GB, 48GB8GB, 16GB
Module per kit2, 41, 2, 41, 2
Default timing40-40-40-7740-40-40-7740-40-40-80

If my Corsair Dominator Platinum DDR5 RGB review has you considering other options, here are two more DDR5 RAM models to consider...


Corsair Vengence DDR5
Corsair's Vengence DDR5 doesn't have as many frills as the Corsair Dominator Platinum RGB, but is makes up for it by being more affordable while still delivering outstanding performance and newer memory configurations like 24GB and 48GB modules.


Kinston Fury Beast DDR5
This line of DDR5 offers some of the best performance of any DDR5 out there, while also offering you the chance to pick up single modules ranging from 8GB to 32GB. It is slightly more expensive, though.

How I tested the Corsair Dominator Platinum RGB DDR5

  • I've spent several days dedicated to testing
  • I also used it as my standard configuration for component testing
  • I used benchmarking tools like AIDA64 and Passmark for precise performance data

In addition to using this RAM in all of my other component testing, I spend a few days testing the performance of the RAM module itself using third-party tools like AIDA64 and PassMark. 

While this is high-performance RAM, I paid special attention to the aesthetic appeal of this RAM specifically since it is really meant to be a showpiece in a build on top of performing at the highest level.

I've been building PCs for many years now, so I'm very familiar with Corsair's lineup of PC components. In addition, my computer science background and years of hardware coverage have given me particular insight into how well computer components should perform.

We pride ourselves on our independence and our rigorous review-testing process, offering up long-term attention to the products we review and making sure our reviews are updated and maintained - regardless of when a device was released if you can still buy it, it's on our radar.

Read more about how we test

First reviewed May 2023

John Loeffler
Components Editor

John (He/Him) is the Components Editor here at TechRadar and he is also a programmer, gamer, activist, and Brooklyn College alum currently living in Brooklyn, NY. 

Named by the CTA as a CES 2020 Media Trailblazer for his science and technology reporting, John specializes in all areas of computer science, including industry news, hardware reviews, PC gaming, as well as general science writing and the social impact of the tech industry.

You can find him online on Threads @johnloeffler.

Currently playing: Baldur's Gate 3 (just like everyone else).