Sunday Question: JEDEC, XMP Profile or Actual Overclocking?

Sonntagsfrage: JEDEC, XMP-Profil oder doch lieber echtes Overclocking?

Whether DDR4 or DDR5, main memory, so-called RAM, can be powered and overclocked in a variety of ways. Which option do you prefer? Whether the memory in your system operates with the standards specified by JEDEC, “humane” overclocking or “real” RAM depends very much on the OC use case.

In particular, several requests for help in the RAM sub-forum state that many readers inadvertently operate their RAM with JEDEC profiles stored additionally for DDR4-2133 instead of loading XMP profiles and thus by the manufacturer. Advertised specifications and information.

The associated XMP profile, which can be used for both Core i series from Intel and Ryzen processors and APUs from AMD, can be activated directly through the BIOS/UEFI of any computer system.

Community member “Ned Flanders” pointed to this fact and thus provided impetus for this Sunday’s question.


While it is generally sufficient, especially sometimes for gamers who use their PC for other purposes, to load an XMP profile that is appropriate for the platform and is not too homeopathic, or Even considering only the JEDEC standards, experienced gamers and overclockers rely on it to detect clock frequencies and timings entirely manually and eventually from memory to even higher FPS and Receives the frame time.

JEDEC Standard, XMP Profile or RAM OC, How do ComputerBase readers operate the main memory in their system?

Meanwhile, the world record attempt with DDR5 memory has already reached 10,000 . are more than metric ton/s Arrived, MSI and Kingston recently arrived with the help of liquid nitrogen, the so-called liquid nitrogen (ln2), the new record for DDR5-10004 CL72-126-126-126 with 5001.8 MHz.

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Just a few days ago, Gigabyte competed with the even more impressive DDR5-10044 CL46-58-58-46.

World Ranking for DDR5 RAM (Source,
  • DDR5-10044 CL46
  • DDR5-10004 CL72
  • DDR5-9560 CL127
  • DDR5-9513 CL50
  • DDR5-9002 CL42

The fastest DDR4 memory module ever developed operated at 3,600 MHz or DDR4-7200 and at a CAS memory latency of 58 clock cycles. DDR4 hits a hard clock wall of 7,200 MT/s in many cases and only the best overclockers can reach higher memory frequencies.

World Ranking for DDR4 RAM (Source,
  • DDR4-7200 CL58
  • DDR4-7191 CL58
  • DDR4-7156 CL58
  • DDR4-7072 CL58
  • DDR4-6990 CL31

DDR4-2133 to DDR5-7200

Most gamers are much more human in everyday life, whether they use lighter or stronger RAM OCs based on XMP profiles or manual adjustments based on JEDEC standards and CPU specifications. But what memory clock or standard do community members use?

Users who don’t know what specifications they are running their RAM with can use the system tools ZenTimings or HWiNFO to read information such as memory clock and timing, for example.

BIOS, tools or manual work?

Users running RAM-OC usually do this for a variety of reasons. In addition to the sometimes high results in various synthetic benchmarks and negligible performance gains in memory-intensive applications, gamers also benefit from RAM-OC.

Overclocking the main memory can lead to an increase in the number of frames per second, especially in the CPU limit, and above all an increase in the minimum FPS in games.

When it comes to RAM-OC, there are also several ways to get there. While one user relies on OC and system tools as well as Auto-OC in the BIOS, another explores the memory clock, primary, secondary and tertiary timings and resistance completely by hand.

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What do the community members of the ComputerBase Forum think?

participation is clearly desired

The editors will be more than happy to find well-founded and detailed reasons for your decisions in the comments to the current Sunday’s question.

Readers who have not yet participated in last Sunday’s questions are welcome to do so. There is still exciting discussion going on in the Computerbase forums, especially with regard to past surveys.

last fifteen sunday questions

Do you have ideas for Interesting Sunday Questions? Editors are always happy to receive suggestions and submissions.

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