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ASRock B450M/AC R2.0 AM4 AMD Promontory B450 SATA vs ASUS ROG Strix B650E-I Gaming WiFi AMD B650 AM5

Updated July 2026 — ASUS ROG Strix B650E-I Gaming WiFi AMD B650 AM5 leads on price and connectivity.

The ASUS ROG Strix B650E-I offers superior performance and features compared to the ASRock B450M/AC. For budget users, the ASRock is a solid choice.

Why ASRock B450M/AC R2.0 AM4 AMD Promontory B450 SATA is better

Price

ASRock is significantly cheaper at $79.00.

Basic Features

Adequate for basic gaming and productivity.

Compatibility

Supports a wide range of AMD processors.

Why ASUS ROG Strix B650E-I Gaming WiFi AMD B650 AM5 is better

Performance

Superior power delivery with 10+2 stages.

Connectivity

Includes PCIe 5.0 and dual M.2 slots.

Build Quality

High-quality components and thermal management.

Overall score

ASRock B450M/AC R2.0 AM4 AMD Promontory B450 SATA
65
ASUS ROG Strix B650E-I Gaming WiFi AMD B650 AM5
90

Specifications

SpecASRock B450M/AC R2.0 AM4 AMD Promontory B450 SATAASUS ROG Strix B650E-I Gaming WiFi AMD B650 AM5
SocketAM4AM5
RAM TypeDDR4DDR5
M.2 Slots12
PCIe Version3.05.0
Power Stages410+2

Dimension comparison

ASRock B450M/AC R2.0 AM4 AMD Promontory B450 SATAASUS ROG Strix B650E-I Gaming WiFi AMD B650 AM5

Overview of the Products

In this comparison, we will be looking at the ASRock B450M/AC R2.0 and the ASUS ROG Strix B650E-I Gaming WiFi. The ASRock B450M/AC is priced at $79.00, while the ASUS ROG Strix B650E-I is significantly more expensive at $209.99, making it about 165% pricier than the ASRock model. Both motherboards are designed for AMD processors but cater to different user needs and budgets.

Target Audience

The ASRock B450M/AC is targeted at budget-conscious users who want solid performance for basic to moderate gaming and productivity tasks. With support for Ryzen processors up to the 5000 series, it offers essential features without breaking the bank. On the other hand, the ASUS ROG Strix B650E-I is aimed at gamers and enthusiasts looking for high-end performance. Its support for the latest Ryzen 9000, 8000, and 7000 series processors ensures it can handle demanding applications and gaming scenarios.

Performance Capabilities

When it comes to performance, the ASUS ROG Strix B650E-I outshines the ASRock B450M/AC thanks to its advanced power delivery system, boasting 10+2 power stages. This robust setup allows for better handling of high-performance multi-core processors. Meanwhile, the ASRock B450M/AC, while capable, offers a more modest experience with support for DDR4 3200 and a single PCIe 3.0 x16 slot. In terms of raw power and future-proofing, the ASUS model is clearly the superior choice.

Features and Connectivity

The ASUS ROG Strix B650E-I offers a plethora of features that cater to modern gamers, including PCIe 5.0 support, dual M.2 slots, and a USB 3.2 Gen 2x2 Type-C port for high-speed connectivity. In contrast, the ASRock B450M/AC has more basic connectivity options, including one PCIe 2.0 x16 and HDMI output. For users who prioritize connectivity and cutting-edge technology, the ASUS motherboard is a clear winner, offering next-gen capabilities that the ASRock simply cannot match.

Build Quality and Design

The ASUS ROG Strix B650E-I is designed with high-quality components, featuring thick heatsinks for optimized thermal management. This robust construction is essential for maintaining performance during extended use. The ASRock B450M/AC, while functional, does not emphasize premium build quality to the same extent. Users looking for durability and reliability in high-performance scenarios will find the ASUS model more appealing due to its superior thermal solutions.

Price-to-Value Ratio

At $79.00, the ASRock B450M/AC offers an excellent price-to-value ratio for users who need a basic motherboard without extravagant features. It supports a wide range of AMD processors and provides essential functionalities for everyday tasks. However, for gamers and power users, the ASUS ROG Strix B650E-I, though priced at $209.99, presents a more compelling value proposition with its advanced features and performance capabilities. The choice depends largely on the user's specific needs and budget constraints.

Brand Reputation

Both ASRock and ASUS are reputable brands in the motherboard market, but ASUS, particularly with its ROG line, is often associated with higher performance and premium features. The ASUS ROG Strix B650E-I benefits from this strong reputation, making it a preferred choice for gamers and enthusiasts. The ASRock B450M/AC, while a solid choice for budget users, may not carry the same prestige. Brand loyalty and past experiences may influence potential buyers’ decisions.

Which should you buy?

The decision between the ASRock B450M/AC and the ASUS ROG Strix B650E-I hinges on your specific needs and budget. If you are looking for an affordable, reliable motherboard for basic tasks and gaming, the ASRock B450M/AC at $79.00 is an excellent choice. However, if you want cutting-edge features, superior performance, and are willing to invest more, the ASUS ROG Strix B650E-I at $209.99 is the better option. Ultimately, your choice should reflect your requirements and how much you are willing to spend on your motherboard.