ASUS ROG Crosshair X870E Edition 20 Motherboard

The ASUS ROG Crosshair X870E Edition 20 is a flagship E-ATX gaming motherboard for AMD Ryzen 9000, 8000 and 7000 Series desktop processors, combining the AMD X870E chipset with an advanced 24+2+2 power-stage design, DDR5 memory support, PCIe 5.0 connectivity and up to nine M.2 slots. Supporting up to 256GB of DDR5 memory with speeds up to 8600+ MT/s via overclocking on Ryzen 9000 processors, the motherboard features NitroPath DRAM Technology, DIMM Fit Pro and AMD EXPO support for advanced memory optimisation. Two PCIe 5.0 x16 slots provide high-bandwidth expansion, while five onboard M.2 slots, a ROG Hyper M.2 card and ROG Q-DIMM.2 enable up to nine M.2 storage devices, including multiple PCIe 5.0 x4 interfaces. Networking includes dual 10Gb Ethernet and WiFi 7 with 320MHz channels, 6GHz support and 4096-QAM, while two USB4 40Gbps Type-C ports and extensive USB 10Gbps and 20Gbps connectivity provide high-speed peripheral support. The ROG Crosshair X870E Edition 20 also features ROG SupremeFX 7.1-channel audio with an ESS ES9219 QUAD DAC, Dolby Atmos, Bluetooth LE Audio and LHDC support. A full-copper VRM heatsink, 3D VC M.2 heatsink, M.2 heatsinks with backplates and comprehensive fan and pump headers provide extensive cooling support, while the included ROG RYUJIN 360 Edition 20 features a copper CPU/VRM liquid cold plate and swivel dual 6.67 inch AMOLED LCD displays for a distinctive showcase setup. Designed for enthusiast gaming PCs, overclocking, high-speed storage and demanding workloads, the ASUS ROG Crosshair X870E Edition 20 delivers an extensive feature set with advanced connectivity, cooling and personalisation options.

Features

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ROG Crosshair X870E Edition 20

Innovate. Perform. Dominate.

Created to celebrate ROG's 20th anniversary, the ROG Crosshair X870E Edition 20 combines iconic design, exclusive collectability, and flagship performance in one exceptional platform.

Equipped with robust 24+2+2 power stages, up to nine M.2 slots, and a full-copper VRM thermal solution, it delivers uncompromising stability and cooling for extreme performance.

Paired exclusively with the ROG RYUJIN 360 EDITION 20, featuring the Asetek EMMA Gen10 V3Rx pump and a high-performance cold plate crafted from 99.95% high-purity copper, designed to simultaneously cool both the CPU and critical VRM components, this ultimate combination pushes thermal performance even further.

Completing the experience is the Swivel Dual 6.67" Curved AMOLED Display with ASUS Info hub control, transforming the system into a synchronised showcase of performance and immersive visuals.

• Teamed Power Solution
• Full Copper Vrm Heatsink
• Up to Nine M.2 Slots - Five Onboard Slots Plus Two Slots via Rog Hyper M.2 Card and Two Slots via Rog Q-dimm.2
• Rog Ryujin 360 Edition 20 - Asetek Emma Gen10 V3rx Pump, 40mm Thick, 20 Fpi Non-louvred Radiator, Swivel Dual 6.67" Curved AMOLED Display, Display Sync-up Mode
• Asus Aio Q-connector
• 3D VC M.2 Heatsink
• Ddr5 - Max. 256 Gb, Server-grade Dram Enhancement, Nitropath Dram Technology, AEMP
• Rog Memory Q-fan

Cooling - Onboard

Copper VRM Thermal Solution

A whole-copper thermal solution cools both the CPU and VRM area simultaneously, delivering exceptional and sustained performance even under the most demanding workloads.

3D VC M.2 Heatsink

The 3D vapour chamber M.2 heatsink offers a larger heat dissipation area, connected to extended heat pipes through a temperature equalisation plate to form a vacuum chamber, significantly improving cooling for PCle 5.0 M.2 SSDs.

M.2 Heatsinks

Large aluminium heatsinks provide extensive surface area to cool mounted M.2 drives, and three onboard M.2 slots have dedicated backplates for additional heat dissipation.

Chipset Heatsink and 3mm Backplate Heatsink

A dedicated heatsink draws heat away from the chipset to maintain optimum operating temperature.

ROG Ryujin 360 Edition 20

• Asetek Emma Gen10 V3rx Pump
• Microfinned Copper Cold plate
• Copper Heatsink
• Swivel Dual 6.67" Curved AMOLED Display
• Lower 40°C - Mosfet Temperature
• Lower 10% - CPU Temperature
• 5.71 mmH2O Air Pressure
• 95.65 CFM Air Flow
• 500~2600&plus-minus;10% RPM Fan Speed

Heavy-Duty Radiator

The Counter-Cross Flow Hex radiator reengineers the liquid path through the 40mm-thick radiator to maximise heat dissipation surface area and thermal efficiency, delivering exceptional cooling performance.

Personalisation

Swivel Dual 6.67" Curved AMOLED Display

The ROG Crosshair X870E Edition 20 features a swivel dual 6.67-inch curved AMOLED display that can be adjusted to the perfect viewing angle. You can enable Display Sync-Up Mode through ASUS Info Hub to seamlessly synchronise visuals between the ROG Crosshair X870E Edition 20 and the ROG Astral GeForce RTX 5090 Edition 20.

Asus AI Intelligence

AI Cache Boost

Supercharge your large language model (LLM) workflows with AI Cache Boost. Exclusive to ASUS AMD 800 and 600 series motherboards that use Ryzen™ 9000 Series CPUs, this BIOS setting optimises CPU cache and memory pathways to deliver up to 29% faster local LLM performance with high-speed memory tuning.

Increase AI LLM performance up to 29% with AI Cache Boost

Tokens Per Second

With an ASUS AMD 600 or 800 series motherboard and a Ryzen™ 9000 series CPU, you can enable the AI Cache Boost setting in the BIOS. This feature applies comprehensive optimisations to CPU cache and memory pathways, greatly reducing the typical performance drop that can happen when VRAM is used up. Internal testing determined that enabling AI Cache Boost delivered up to a 15% performance uplift when running large language models that exceeded graphics card memory. With high-speed DDR5 memory and additional Infinity Fabric clock (FLCK) speed tuning, this performance uplift nearly doubled. For enthusiasts, creators or anyone who wants a powerful AI model capable of deep reasoning and natural conversation running on their own hardware, they can enjoy these uplifts today with AI Cache Boost.

AMD Ryzen 7 9800X3D - RX9070XT-16GB - ROG Crosshair X870E Hero

• Default: 6.35
• AI Cache Boost: 7.31 - +15.12%
• AI Cache Boost: 8.2 (EXPO8000 + FCLK 2200MHz)

AMD Ryzen 7 9800X3D - RTX5080-16GB - ROG Crosshair X870E Hero

• Default: 6.01
• AI Cache Boost: 6.96 - +15.81%
• AI Cache Boost: 7.64 (EXPO8000 + FCLK 2200MHz)

Benchmark

Run AI applications on your PC more smoothly with AI Cache Boost

AMD Ryzen 9 9950X3D - RTX 4090 - ROG Crosshair X870E Hero

Geekbench AI (Higher is better)

• Default: 51786
• AI Cache Boost: 54392 - +5.03%
• AI Cache Boost & Turbo Game Mode: 56757

UL Procyon - AI Computer Vision Benchmark (Higher is better)

• Default: 1426
• AI Cache Boost: 1485 - +4.14%
• AI Cache Boost & Turbo Game Mode: 1702

Topaz Video AI (Lower is better)

• Default: 153 sec