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Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Yes—the ROG Maximus Z890 Apex was genuinely used in record-setting overclocking sessions, but ASUS’s headline figures describe professional, highly controlled experiments rather than normal desktop performance. ASUS announced five world records, 19 global first-place records and 31 first-place records on October 24, 2024. The results covered CPU frequency, DDR5 speed and benchmark tests. A later reported 12,872 MT/s DDR5 run gives the claim a concrete example, although it used liquid nitrogen, one memory module and single-channel operation.
What ASUS actually announced
ASUS’s announcement credited professional overclockers including Elmor, BenchMarc, OGS and CENS with achieving:
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- Five world records
- 19 global first-place records
- 31 first-place records
The categories included processor frequency, memory speed and benchmark performance, according to ASUS’s regional release dated November 7, 2024 (ASUS ROG announcement). The global announcement was dated October 24, 2024 (ASUS News).
These are manufacturer-reported aggregate results. The announcement does not provide a complete independent score table, validation link for every category or a repeatable consumer tuning recipe. The records demonstrate what the platform enabled; they do not show that the motherboard alone produced them.
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- Intel LGA 1851 Socket: Ready for Intel Core Ultra Processors (series 2)
- Exclusive AI: AI Cooling II and AI Networking II to simplify setup and improve performance
- Robust Power Solution: 16+1+2+1 80A DrMOS power stages with ProCool power connectors, 8-layer PCB, alloy chokes and durable capacitors for stable power delivery
- Optimized Thermal Design: Large VRM heatsinks, M.2 and PCH heatsinks, hybrid fan headers and Fan Xpert 4 with AI Cooling II
The clearest documented example: 12,872 MT/s DDR5
In July 2025, overclocker Bl4ckdot reportedly reached 12,872 MT/s effective DDR5 data rate using the Apex, an Intel Core Ultra 9 285K and a single 24GB G.Skill Trident Z5 DDR5-5600 module. The system operated in single-channel mode under liquid-nitrogen cooling, with reported timings of approximately CL68-127-127-127-2. Tom’s Hardware reported that the result was validated through CPU-Z and HWBOT (reported result).
DDR5 data rates are expressed in MT/s, not physical clock MHz. The reported 12,872 MT/s corresponds to roughly 6,436 MHz real memory clock. It is a frequency-validation achievement, not evidence that a conventional dual-channel gaming system should run that speed.
- Cooling: liquid nitrogen, not air cooling or a standard liquid cooler.
- Capacity and channels: one 24GB DIMM in single-channel operation.
- Timings: extremely loose timings, prioritizing frequency over latency.
- Validation: a reported CPU-Z and HWBOT submission, rather than a long-duration stability test.
The session matters because it shows the Apex being used in a documented extreme-frequency run, while its conditions explain why the result is not a consumer performance promise.
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Why the Apex has two DIMM slots
The board uses only two DDR5 DIMM slots. ASUS says this allows shorter memory signal traces, helping professional overclockers reach high memory multipliers (ASUS explanation).
Signal integrity advantage
Fewer slots reduce electrical loading and can make very high-frequency memory tuning easier. That is central to the Apex’s identity as a frequency-focused overclocking board.
Rank #2
- Not compatible with all built-in computers or systems
- Supports Intel Core Ultra Processors (Series 2)(LGA1851)
- 10+1+1+1+1 Power Phase, Dr.MOS for VCore+GT+SA
- 4 x DDR5 DIMMs Supports Dual Channel, up to 8666+ (OC)
- Graphics Output Options: 1 HDMI, 1 DisplayPort Realtek ALC897 7.1 CH HD Audio Codec
Capacity and upgrade trade-off
ASUS lists support for up to 128GB, but two slots provide less flexibility than a conventional four-DIMM motherboard. A four-slot board is generally more convenient for upgrading mixed-capacity kits or building a high-capacity workstation.
Platform and power hardware
The ROG Maximus Z890 Apex uses the Intel Z890 chipset and LGA1851 socket for Intel Core Ultra processors, Series 2. It is not compatible with older LGA1700 processors or AMD Ryzen CPUs. ASUS specifications are available on the official product page and in the manual.
ASUS lists dual ProCool II power connectors and a detailed 22(110A)+1(90A)+2(90A)+2(80A) power-stage arrangement. ASUS pages also use shorthand such as “22+1+2+2” and “22+2+1+2”; the current ratings above are the detailed electrical figures from the product listing. This hardware is intended to supply high-current Core Ultra processors during aggressive tuning, not merely stock operation.
Memory tools and frequency claims
Relevant memory features include:
- AEMP III: automated memory tuning, particularly for compatible CUDIMM modules.
- DIMM Fit and DIMM Fit Pro: diagnostics and tuning assistance for individual memory modules.
- DIMM Flex: adjusts memory behavior according to DIMM temperature.
- ROG Memory Fan Kit: adds direct airflow over the DIMMs.
ASUS promotes enthusiast memory exceeding 9 GT/s and reaching 9000+ MT/s with suitable components and cooling (product specifications). That is an overclocking target, not a guaranteed operating speed. Results depend on the processor’s integrated memory controller, DIMM layout and memory ICs, BIOS version, voltage, temperature and the individual board.
An XMP or advertised kit rating is also different from a record frequency. A high-speed profile is intended to boot and operate within stated conditions; a competitive run may be stable only long enough to complete one benchmark.
Rank #3
- Intel Socket LGA 1851: Ready to support Intel Core Ultra (Series 2) Processors.
- Enhanced Power Solution: 4+1+2 Hybrid VRM Design with premium chokes and capacitors for steady power delivery.
- Advanced Thermal Armor: Advanced VRM heatsink for better heat dissipation. Integrated I/O shield for quicker PC DIY assembly.
- Boost Your Memory: Compatible with DDR5 Memory and supports 2 DIMMs with Intel XMP Memory Module Support.
- Comprehensive Connectivity: 1x PCIe 5.0 x16 slot, 1x PCIe 4.0 M.2 slot, 1x USB 3.2 Gen 1 Type-A, and Front USB-C 5Gb/s for hassle-free setup.
Connectivity, expansion and storage limits
The broader specification is unusually rich for a two-DIMM board:
| Feature | Specification |
|---|---|
| Processor platform | Intel LGA1851, Core Ultra Series 2, Z890 chipset |
| Memory | DDR5, two DIMM slots, up to 128GB listed |
| Expansion | Two PCIe 5.0 x16 slots and four PCIe 4.0 x4 slots |
| Storage | Six M.2 positions total with the ROG DIMM.2 card; four SATA 6Gb/s ports |
| Networking | Realtek 5Gb Ethernet and Wi-Fi 7 |
| External I/O | Two Thunderbolt 4 Type-C ports and USB 20Gbps connectivity |
| Recovery controls | BIOS Flashback and Clear CMOS |
The manual documents an important lane-sharing caveat: M.2_3 and M.2_4 share bandwidth with the second PCIe 5.0 x16 slot. Depending on the exact configuration, enabling those M.2 sockets can reduce the primary graphics slot to x8, run the second slot at x4 or disable the second slot (manual lane map). Anyone planning multiple graphics cards, accelerator cards or several high-speed SSDs should check that diagram before buying.
What the records mean for everyday overclocking
Extreme validation
Record attempts use selected processors, carefully binned memory, specialized firmware settings and cooling such as liquid nitrogen. They may run for seconds or minutes, rather than pass a full day of gaming, rendering and memory testing.
Daily-stable tuning
A practical overclock should be validated with sustained CPU and memory stress tests, storage workloads and the applications you actually use. Conservative voltage, temperature and power limits matter more than a screenshot frequency.
Gaming performance
A 12,872 MT/s single-channel run is not automatically faster in games than a lower-frequency dual-channel configuration with tighter timings. Memory bandwidth, latency, capacity and application behavior all matter, and the motherboard does not change that basic trade-off.
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- Ready for advanced AI PCs: Designed for the future of AI computing, with the power and connectivity needed for demanding AI applications
- Intel LGA1851 socket: Ready for Intel Core Ultra Series 2 9, 7, and 5 desktop processors
- Robust performance: 16+2+1+2 teamed power stages, ProCool II power connectors, high-quality alloy chokes and durable capacitors
- Future-proofed connectivity: Dual Thunderbolt 5 & a Thunderbolt 4 ports, 10 Gb & 2.5 Gb Ethernet, WiFi 7, two PCIe 5.0 with full support for next-gen GPU, and one PCIE 5.0, four PCIe 4.0 M.2 slots and a USB 20Gbps front-panel header
- Exclusive AI and overclocking technologies: AI Overclocking, AI Cooling II, AI Networking II, AI Advisor, and NPU boost
Common failure modes
Training loops and failed boots
High DDR5 ratios can trigger repeated memory training, fallback settings or a no-boot condition. Learn the location of Clear CMOS and BIOS Flashback before changing ratios or voltages, and keep a known-good baseline profile.
Processor-to-processor variation
Two otherwise identical Core Ultra processors can have very different memory-controller limits. ASUS warns that achievable memory overclocking varies with the CPU, motherboard and modules. AEMP III can assist setup, but it cannot overcome a weak memory controller or incompatible kit.
CUDIMM and QVL support
Check the current qualified-vendor list and BIOS support before purchasing a CUDIMM or other high-speed kit. ASUS directs users to its support resources for compatibility information (ASUS Support download center).
Thermal, electrical and firmware risk
Manual overclocking raises temperature, power consumption and component stress. Extreme voltage can damage the processor, memory, motherboard or power supply and may affect warranty coverage. BIOS revisions can change training, microcode behavior and compatibility, so consult the current support page and release notes rather than relying on a fixed BIOS version.
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Who should buy the Apex?
Competitive overclockers
The two-slot topology, high-current power delivery, onboard recovery controls and memory diagnostics directly suit benchmark and frequency competitions.
Best Value
- Next-Gen Intel Platform: Supports Intel Core Ultra Series 2 processors (LGA1851 socket) with advanced AI capabilities and hybrid architecture
- Stable Power Delivery: 6+1+1+1+1 power phase design provides reliable power for Intel Core Ultra processors and system components
- DDR5 Memory Support: 2 DDR5 DIMM slots support dual-channel configurations and speeds up to 6400 MHz for responsive performance
- Triple Display Outputs: HDMI, DisplayPort, and legacy D-Sub (VGA) connections support multiple monitor setups with both modern and legacy displays
- PCIe 4.0 Ready: Features one PCIe 4.0 x16 slot for modern graphics cards and one PCIe 4.0 x1 slot for expansion cards
Enthusiast builders
It makes sense if manual Core Ultra tuning, premium connectivity and test-bench controls are priorities, and if 128GB maximum capacity is sufficient.
High-end gamers
The board offers excellent connectivity, but record credentials alone do not guarantee higher frame rates. A less expensive Z890 model using the same CPU and graphics card may deliver the same stock gaming experience.
Workstation and capacity-focused users
Consider a four-DIMM board if you need large memory upgrades, mixed-capacity flexibility or many independent PCIe resources. Also account for the M.2 lane-sharing behavior before populating several drives.
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Value-focused buyers
If the processor will remain at stock settings and manual memory tuning is not part of the plan, the Apex’s specialized hardware and controls may provide little practical return.
Bottom line
The ROG Maximus Z890 Apex is credible as a specialized Intel Core Ultra overclocking platform. ASUS’s 2024 aggregate announcement is supported by a later reported 12,872 MT/s DDR5 session using the board, but that result required liquid nitrogen, one DIMM, single-channel operation and expert tuning. Buy the Apex for memory-frequency experimentation, competitive benchmarking and its enthusiast control set—not because a record board automatically makes a stock gaming or workstation PC faster.
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