Samsung DDR5-4800 C40 review: the overclocking champion

There are so many memory vendors out there that it’s impossible to count them all with just two hands. Additionally, some computer brands that did not initially sell memory have also ventured into the business. However, very few vendors manufacture their integrated circuits (ICs) and source the essential ingredient from the big three, such as Micron, SK hynix or Samsung.

According to Statista, Samsung has been the top DRAM manufacturer for ten years. In Q3 2021, the South Korean giant garnered a 44% market share, with SK hynix and Micron trailing at 27% and 22%, respectively. Today, Samsung manufactures many different integrated circuits. specifically, the company’s B-die ICs have long been favorites of enthusiasts and overclockers due to their ability to reach fairly high frequencies with very tight timings. So there were no words to express the excitement when news broke that Samsung would be bringing the legendary B-die to DDR5 memory, which certainly needs it due to the very loose timelines.

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Samsung DDR5-4800 C40

Samsung DDR5-4800 C40 (Image credit: Tom’s Hardware)
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Samsung DDR5-4800 C40

Samsung DDR5-4800 C40 (Image credit: Tom’s Hardware)
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Samsung DDR5-4800 C40

Samsung DDR5-4800 C40 (Image credit: Tom’s Hardware)

Nowadays, consumers place more importance on the aesthetics of hardware. Samsung’s DDR5-4800 memory modules are as old as it gets. They feature a simple green PCB with no RGB pizzazz or heat sink. That’s okay since OEMs are the target market for these memory modules, where they probably won’t see the light of day. Enthusiasts, however, may find it difficult to fit the memory modules into their systems from a cosmetic standpoint. The generic, green PCB will struggle to blend into any system, no matter how you look at it. On the bright side, the memory modules are only 31.15mm (1.23 inches) tall, so you won’t have to worry about clearance space if you have a large CPU air cooler.

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Samsung DDR5-4800 C40

Samsung DDR5-4800 C40 (Image credit: Tom’s Hardware)
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Samsung DDR5-4800 C40

Samsung DDR5-4800 C40 (Image credit: Tom’s Hardware)

The memory module has a single-rank design with a capacity of 16GB. Samsung does not currently offer these as a memory kit, so we paired two memory modules for a dual-channel configuration. The memory modules carry Samsung’s K4RAH086VB-BCQK (B-die) ICs, so there are high overclocking aspirations. However, we were surprised that Samsung used Renesas for the power management integrated circuit (PMIC), given that the South Korean manufacturer manufactures its own DDR5 PMICs. The P8911 PMIC (P8911-Y0B001GR-2130KQ) is in charge of voltage regulation.

Samsung’s memory meets the JEDEC baseline for DDR5. There is no need for XMP 3.0 profiles as the default memory modules are DDR5-4800. The timings on them are 40-39-39-76. The memory requires 1.1V to operate, so putting a heat sink on it is a waste unless you overclock it. See our PC Memory 101 feature and How to Buy RAM article for more on timing and frequency considerations.

Comparison material

memory kit Article number Capacity Data rate Primary Timings Voltage guarantee
G.Skill Trident Z5 RGB F5-6400J3239G16GX2-TZ5RK 2 x 16 GB DDR5-6400 (XMP) 32-39-39-102 (2T) 1.40 Lifetime
G.Skill Trident Z5 RGB F5-6000U3636E16GX2-TZ5RS 2 x 16 GB DDR5-6000 (XMP) 36-36-36-76 (2T) 1h30 Lifetime
TeamGroup T-Force Delta RGB FF3D516G6000HC40ABK 2 x 16 GB DDR5-6000 (XMP) 40-40-40-80 (2T) 1.35 Lifetime
Corsair Dominator Platinum RGB DDR5 CMT32GX5M2B5200C38 2 x 16 GB DDR5-5200 (XMP) 38-38-38-84 (2T) 1.25 Lifetime
Kingston’s Furious Beast KF552C40BBK2-32 2 x 16 GB DDR5-5200 (XMP) 40-40-40-80 (2T) 1.25 Lifetime
Crucial CT2K8G48C40U5 2 x 8 GB DDR5-4800 40-39-39-77 (2T) 1.10 Lifetime
Samsung M323R2GA3BB0-CQKOD x 2 2 x 16 GB DDR5-4800 40-39-39-76 (2T) 1.10 Lifetime

Intel® DDR5 System (Image credit: Tom’s Hardware)

Our DDR5 test system leverages the Intel Core i9-12900K processor with Corsair’s CUE H100i Elite LCD liquid cooler supporting cooling. The flagship Alder Lake chip resides on the MSI MAG Z690 Tomahawk WiFi motherboard, running firmware 7D32vH0. Meanwhile, the MSI GeForce RTX 2080 Ti Gaming Trio is responsible for our gaming RAM benchmarks.

Our Windows 11 install, benchmarking software, and games are stored on Crucial’s MX500 SSDs, while the RM650x powers our entire system with needed juice. Finally, the open Streacom BC1 table houses all our equipment.

Intel® DDR5 System
Processor Intel Core i9-12900K
Motherboard MSI MAG Z690 Tomahawk WiFi
Graphic card MSI GeForce RTX 2080 Ti Gaming X Trio
Storage room Crucial MX500 500GB, 2TB
Cooling Corsair iCUE H100i Elite LCD Display
Power source Corsair RM650x 650W
Case Streamcom BC1

Intel Performance

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Considering the data rate, Samsung’s DDR5-4800 memory didn’t break any performance records. However, the memory has proven to be faster than the Crucial DDR5-4800 memory kit in terms of application and gaming performance.

Samsung DDR5-4800 memory showed its best performance in the Adobe Premiere benchmark, coming in the middle of the pack. However, aside from this reference, the memory was always in the lower positions of the graphs.

Overclocking and latency tuning

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DDR5 Review

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Samsung DDR5-4800 C40

Samsung DDR5-4800 C40 (Image credit: Tom’s Hardware)
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Samsung DDR5-4800 C40

Samsung DDR5-4800 C40 (Image credit: Tom’s Hardware)

There is always a potential risk of damage when using hardware outside of the manufacturer’s specifications. This is the standard caveat with overclocking any hardware, not just memory.

Samsung told us that the company does not guarantee an overclocking voltage for its ICs. The absolute maximum DC of the drain voltage is 1.4 V.

We increased the DRAM voltage to 1.4V to upgrade the memory from DDR5-4800 to DDR5-5800 with a DRAM voltage of 1.4V. Unfortunately, we were only able to obtain the DDR5-4800 memory kit from Crucial to DDR5-5400 under the same voltage. Samsung’s B-die memory was overclocked higher and complied with better timings (36-36-36-76), a testament to Samsung’s B-die ICs.

Lowest stable timings

memory kit DDR5-4800 (1.4V) DDR5-5200 (1.4V) DDR5-5400 (1.4V) DDR5-5800 (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 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 N / A N / A 38-38-38-78 (2T) N / A 40-40-40-82 (2T)
Samsung DDR5-4800 C40 34-35-35-69 (2T) N / A N / A 36-36-36-76 (2T) N / A N / A N / A
Corsair Dominator Platinum RGB DDR5-5200 C38 N / A 34-37-37-77 (2T) 40-40-40-76 (2T) N / A N / A N / A N / A
Kingston Fury Beast DDR5-5200 C40 N / A 36-37-37-78 (2T) 38-38-38-78 (2T) N / A N / A N / A N / A
Crucial DDR5-4800 C40 N / A N / A 40-40-40-77 (2T) N / A N / A N / A N / A

For enthusiasts who don’t want to push the frequency envelope, there is also headroom for tighter timings. However, we don’t see the point of using DDR5-4800. Nevertheless, the memory performed well with its timings at 34-35-35-69 when we set a DRAM voltage of 1.4V in the motherboard firmware.

Conclusion

Samsung DDR5-4800 C40 memory modules deliver performance for consumers looking for entry-level performance you can set and forget. Although it lacks in looks, Samsung DDR5-4800 memory offers unlimited overclocking headroom. It is the most vital attribute of memory. You can achieve high frequency with tight timings. Samsung DDR5-4800 memory won’t leave a sour taste in your mouth if you want to try your hand at B-die overclocking. Our sample came in at DDR5-5800 C36, one of the best configurations by DDR5 standards. Of course, your overclocking mileage will vary, making Samsung DDR5-4800 memory one of those high-risk, high-reward products.

Samsung’s DDR5-4800 C40 memory module sells for $153.26 at Newegg. It is important to emphasize that these are consumer prices, not IT prices. A dual-channel setup will set you back $306.52. The price of DDR5 always fluctuates, but DDR5-4800 32GB (2x16GB) memory kits currently start at $273.99, so the Samsung memory kit is moderately more expensive. But if you want to get your hands on a “cheap” B-die for overclocking, these memory modules are the way to go.