Corsair’s Dominator series is one of the most important memory portfolios in enthusiast circles. But as the old saying goes, if it ain’t broke, don’t fix it. As a result, Corsair has updated its Dominator Platinum RGB range to the latest DDR5 format, taking a similar approach. While the memory looks physically identical to its DDR4 counterpart, it brings all the goodness of DDR5 under the hood. Currently, Corsair offers the Dominator Platinum RGB DDR5 memory kits with data rates and capacities up to DDR5-6400 and 64GB (2x32GB), respectively.
The Dominator Platinum RGB DDR5 memory is available with a black or white anodized aluminum heat spreader. The design retains the clean and aggressive layout that we have come to love from the Dominator series. As usual we have matching fins and a top rail with RGB lighting that attaches to the heat distributor with a couple of screws. In addition, Corsair has implanted 12 ultra-bright individually addressable Capellix RGB LEDs into the light bar.
Since the DDR5 memory modules are practically clones of the DDR4 variants, they also measure 55 mm (2.17 inches) in length. It’s not a height that worries us too much, though, and the memory modules should fit just fine under the most oversized CPU air coolers. To control the lighting of the Dominator Platinum RGB DDR5, you need to download and install Corsair’s proprietary iCUE software. The software also offers other features such as temperature monitoring and saving custom XMP 3.0 profiles on the SPD, a new feature added with DDR5.
The Dominator Platinum RGB memory modules are single-rank with a capacity of 16 GB. Corsair chose Micron’s D8BNJ integrated circuits for this particular SKU. The FBGA code corresponds to the MT60B2G8HB-48B:A (A-die) chips. The power management IC (PMIC) model in these Dominator Platinum RGB memory modules is Renesas’ P8911-Y0Z001GR-2115MU unit.
The memory kit defaults to DDR5-4800 with 40-40-40-76 timings. The XMP 3.0 profile switches the memory to DDR5-5200 and changes the timing to 38-38-38-84. The profile also increases the DRAM voltage to 1.25V. For more information on timing and frequency considerations, see our PC Memory 101 feature and our story on how to buy RAM.
|Memory Kit||part number||Capacity||data rate||Primary times||Tension||Guarantee|
|G.Skill Trident Z5 RGB||F5-6000U3636E16GX2-TZ5RS||2x16GB||DDR5-6000 (XMP)||36-36-36-76 (2T)||1.30||Lifetime|
|TeamGroup T-Force Delta RGB||FF3D516G6000HC40ABK||2x16GB||DDR5-6000 (XMP)||40-40-40-80 (2T)||1.35||Lifetime|
|Corsair Dominator Platinum RGB DDR5||CMT32GX5M2B5200C38||2x16GB||DDR5-5200 (XMP)||38-38-38-84 (2T)||1.25||Lifetime|
|Kingston Fury Beast||KF552C40BBK2-32||2x16GB||DDR5-5200 (XMP)||40-40-40-80 (2T)||1.25||Lifetime|
|Crucial||CT2K8G48C40U5||2x 8GB||DDR5-4800||40-39-39-77 (2T)||1.10||Lifetime|
Our Intel testbed for DDR5 uses the latest Intel Core i9-12900K processor with Corsair’s CUE H100i Elite LCD liquid cooler. The flagship Alder Lake chip rests on an MSI MAG Z690 Tomahawk WiFi motherboard with the 7D32vH0 firmware. Meanwhile, the MSI GeForce RTX 2080 Ti Gaming Trio tackles the gaming workloads of our RAM benchmarks.
Our Windows 11 install, benchmark software and games are stored on Crucial’s MX500 SSDs, while the RM650x feeds our entire system with the necessary juice. Finally, the Streacom BC1 open bench table houses all our hardware.
|Intel DDR5 System|
|Processor||Intel Core i9-12900K|
|Motherboard||MSI MAG Z690 Tomahawk WiFi|
|Graphics Card||MSI GeForce RTX 2080 Ti Gaming X Trio|
|Storage||Critical MX500 500GB, 2TB|
|Cooling||Corsair iCUE H100i Elite LCD Display|
|Power supply||Corsair RM650x 650W|
Corsair’s memory kit sits in the middle of the pack in cumulative application performance. Overall, it was the second fastest memory kit in gaming. The Dominator Platinum RGB DDR5 topped the Cinebench R23 charts, slightly faster than Kingston’s Fury Beast DDR5-5200.
Tune overclocking and latency
When using hardware that is outside the manufacturer’s specifications, there is always a potential risk of damage. That’s the standard caveat when overclocking hardware, not just memory. We have already contacted Micron to inquire about the maximum safe voltage for its ICs, but we have not received any feedback on the topic of safe voltages for overclocking. However, after talking to several memory vendors, they agree that 1.4V is the maximum voltage you’ll want to pump into DDR5 for an extended period of time.
We pushed Corsair’s memory kit to DDR5-5400 by increasing the DRAM voltage to 1.4V and lowering the timing to 40-40-40-76. The memory modules may have more gas in their tanks, but DDR5-5400 was the ceiling at 1.4V.
Lowest stable timing
|Memory Kit||DDR5-5200 (1.4V)||DDR5-5400 (1.4V)||DDR5-6000 (1.4V)||DDR5-6200 (1.4V)||DDR5-6400 (1.4V)|
|G.Skill Trident Z5 RGB DDR5-6000 C36||N/A||N/A||36-33-33-73 (2T)||36-36-36-76 (2T)||N/A|
|TeamGroup T-Force Delta RGB DDR5-6000 C40||N/A||N/A||38-38-38-78 (2T)||N/A||40-40-40-82 (2T)|
|Corsair Dominator Platinum RGB DDR5-5200 C38||34-37-37-77 (2T)||40-40-40-76 (2T)||N/A||N/A||N/A|
|Kingston Fury Beast DDR5-5200 C40||36-37-37-78 (2T)||38-38-38-78 (2T)||N/A||N/A||N/A|
|Crucial DDR5-4800 C40||N/A||40-40-40-77 (2T)||N/A||N/A||N/A|
Using the same 1.4V, we reduced the Dominator Platinum RGB DDR5 memory kit to 34-37-37-77 at DDR5-5200. While the CAS Latency was quite forgiving, the tRCD and tRP timings wouldn’t fall below 37 clocks.
Corsair’s Dominator Platinum RGB DDR5-5200 C38 ticks all the right boxes for the more discerning consumer. It has a solid construction and a striking aesthetic that will appeal to even the most discerning enthusiast. While not the best, the execution is respectable in anyone’s book. However, the price may put off potential buyers.
If you’re part of Corsair’s premium Dominator family, you’ll pay a small premium for the Dominator Platinum RGB DDR5-5200 C38. When in stock, the memory kit retails for $349.99 (opens in new tab), and prices won’t improve until the DDR5 deficit is over. So if you’re ready to jump on the DDR5 train, the Dominator Platinum RGB DDR5-5200 C38 should be on your list of options.