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ASUS ROG STRIX B860-I GAMING WIFI B860 LGA 1851 mITX Mini-ITX motherboard vs ASUS Prime X870-P WiFi AMD AM5 X870 ATX Motherboard 14+2+1 80A DrMOS Power Stage

Updated August 2026The ASUS Prime X870-P WiFi offers superior power delivery, connectivity, and cooling for high-end AMD builds, while the ASUS ROG STRIX B860-I Gaming WiFi is a compact, cost-effective choice with strong AI features for Intel Mini-ITX setups.

The ASUS Prime X870-P WiFi offers superior power delivery, connectivity, and cooling for high-end AMD builds, while the ASUS ROG STRIX B860-I Gaming WiFi is a compact, cost-effective choice with strong AI features for Intel Mini-ITX setups.

Why ASUS ROG STRIX B860-I GAMING WIFI B860 LGA 1851 mITX Mini-ITX motherboard is better

Compact form factor

Mini-ITX size vs ATX

Thunderbolt 4 support

Includes Thunderbolt 4 USB Type-C port

AI features

Exclusive ASUS AI Advisor and AI Networking II

Why ASUS Prime X870-P WiFi AMD AM5 X870 ATX Motherboard 14+2+1 80A DrMOS Power Stage is better

Power delivery

14+2+1 80A DrMOS power stages vs 10+1+2+1

Connectivity

USB4 (40Gbps) Type-C and multiple 10Gbps USB ports

Cooling solution

Large VRM heatsink, dual M.2 heatsinks, AI Cooling II

Overall score

ASUS ROG STRIX B860-I GAMING WIFI B860 LGA 1851 mITX Mini-ITX motherboard
78
ASUS Prime X870-P WiFi AMD AM5 X870 ATX Motherboard 14+2+1 80A DrMOS Power Stage
88

Specifications

SpecASUS ROG STRIX B860-I GAMING WIFI B860 LGA 1851 mITX Mini-ITX motherboardASUS Prime X870-P WiFi AMD AM5 X870 ATX Motherboard 14+2+1 80A DrMOS Power Stage
SocketIntel LGA 1851AMD AM5
Form FactorMini-ITXATX
Power Stages10+1+2+1 80A14+2+1 80A DrMOS
PCIe M.2 Slots2 PCIe 5.01 PCIe 5.0
USB PortsThunderbolt 4, USB 20Gbps, USB 10GbpsUSB4 40Gbps, USB 10Gbps front & rear
Wi-FiWi-Fi 7 (802.11be)Wi-Fi 7
CoolingMassive heatsinks, L-shaped heatpipeVRM heatsink, dual M.2 heatsinks, AI Cooling II
PriceC$294.98C$339.99

Dimension comparison

ASUS ROG STRIX B860-I GAMING WIFI B860 LGA 1851 mITX Mini-ITX motherboardASUS Prime X870-P WiFi AMD AM5 X870 ATX Motherboard 14+2+1 80A DrMOS Power Stage

Overview of ASUS ROG STRIX B860-I GAMING WIFI

The ASUS ROG STRIX B860-I GAMING WIFI is a robust Mini-ITX motherboard priced at C$294.98. It is designed specifically for advanced AI computing, featuring an Intel LGA 1851 socket suitable for Intel Core Ultra processors from Series 2. This motherboard stands out with its exceptional power solution comprising a 10(80A)+1(80A)+2(80A)+1(80A) power stage configuration, ensuring stable and efficient power delivery for demanding applications. The integration of cutting-edge technologies like Wi-Fi 7 and PCIe 5.0 makes it a future-ready option, ideal for compact builds focused on high performance.

Overview of ASUS Prime X870-P WiFi

The ASUS Prime X870-P WiFi, priced at C$339.99, is an ATX motherboard designed for AMD's AM5 platform, making it compatible with Ryzen 7000, 8000, and 9000 series processors. This motherboard features an enhanced 14+2+1 80A DrMOS power stage configuration, which offers superior power stability and efficiency. With ultrafast connectivity options including Wi-Fi 7, USB4 (40Gbps) Type-C ports, and PCIe 5.0, it caters to high-end gaming and productivity needs. The comprehensive cooling solutions ensure the motherboard maintains optimal performance even under heavy workloads.

Performance Capabilities

In terms of performance, the ASUS ROG STRIX B860-I GAMING WIFI is equipped with two PCIe 5.0 M.2 slots, providing two pathways for high-speed storage. One of these slots is cooled by a large heatsink, which maximizes performance and ensures longevity. The motherboard's robust power stage configuration supports high-performance components, making it suitable for gaming and content creation. On the other hand, the ASUS Prime X870-P boasts a 14+2+1 power stage, which is designed to handle even more demanding applications, making it a strong contender for those focused on extreme performance and multitasking.

Connectivity Options

The connectivity options are a significant differentiator between the two motherboards. The ASUS ROG STRIX B860-I offers one Thunderbolt 4 USB Type-C port, along with multiple USB ports including a 20Gbps connector and two 10Gbps ports. This diverse array of ports makes it highly versatile for various peripherals. Conversely, the ASUS Prime X870-P provides even more extensive connectivity with USB4 (40Gbps) Type-C ports and front USB 10Gbps Type-C and rear USB 10Gbps Type-A ports. This advantage in connectivity allows for faster data transfer and better compatibility with modern devices.

Cooling Solutions

Cooling solutions are crucial for maintaining system stability, especially under heavy loads. The ASUS ROG STRIX B860-I features a well-designed thermal solution with massive heatsinks and high-conductivity thermal pads. This design ensures efficient heat dissipation, especially when using high-performance components. In contrast, the ASUS Prime X870-P includes a large VRM heatsink and dual M.2 heatsinks, along with hybrid fan headers and AI Cooling II. This comprehensive approach to cooling provides an edge for users who plan on overclocking or running demanding applications for extended periods.

AI Features and Enhancements

Both motherboards are built with advanced AI capabilities, making them suitable for future computing needs. The ASUS ROG STRIX B860-I incorporates exclusive ASUS AI technologies such as AI Advisor and AI Networking II, which simplify setup and enhance performance. Meanwhile, the ASUS Prime X870-P also highlights its readiness for advanced AI applications, with a power solution designed to support demanding tasks. This focus on AI-driven enhancements positions both options as forward-thinking choices for tech enthusiasts.

Price Comparison

The ASUS ROG STRIX B860-I GAMING WIFI is priced at C$294.98, making it a more budget-friendly option for users looking for a powerful Mini-ITX motherboard. In contrast, the ASUS Prime X870-P WiFi is priced at C$339.99, reflecting its ATX form factor and enhanced features. While the price difference of C$45 may seem significant, the additional features and capabilities of the X870-P may justify the higher cost for users seeking maximum performance and connectivity.

Which should you buy?

Choosing between the ASUS ROG STRIX B860-I GAMING WIFI and the ASUS Prime X870-P WiFi ultimately depends on your specific needs. If you’re looking for a compact, cost-effective motherboard with excellent performance and AI features, the ROG STRIX B860-I is a strong choice. However, if you require extensive connectivity options, superior cooling solutions, and are planning to utilize high-end AMD processors, the ASUS Prime X870-P may be worth the extra investment. Consider your performance requirements, budget, and future upgrade plans to make the best decision.

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