ASRock B550 Phantom Gaming 4 AC Supports 3rd Gen vs ASUS ROG Strix X870E-E Gaming WiFi AMD AM5 X870
Updated August 2026 — ASUS ROG Strix X870E-E Gaming WiFi AMD AM5 X870 leads on features and connectivity.
The ASUS ROG Strix X870E-E offers superior performance and features compared to the ASRock B550 Phantom Gaming 4 AC, making it the better choice for high-end users. However, the ASRock is a budget-friendly option for casual gamers.
Why ASRock B550 Phantom Gaming 4 AC Supports 3rd Gen is better
Price
ASRock B550 is significantly cheaper at $100.71.
Basic Features
Adequate for mid-range gaming setups.
Power Phase
8 power phase design is sufficient for its target audience.
Why ASUS ROG Strix X870E-E Gaming WiFi AMD AM5 X870 is better
Performance
18+2+2 power stages provide better support for high-end processors.
Memory Support
Supports DDR5 memory for future-proofing.
Connectivity
More M.2 slots and USB4 Type-C ports for extensive connectivity.
Overall score
Specifications
| Spec | ASRock B550 Phantom Gaming 4 AC Supports 3rd Gen | ASUS ROG Strix X870E-E Gaming WiFi AMD AM5 X870 |
|---|---|---|
| Processor Support | 3rd Gen AMD AM4 | AMD Ryzen 9000/8000/7000 |
| Memory Type | DDR4 | DDR5 |
| Power Stages | 8 | 18+2+2 |
| M.2 Slots | 2 | 5 |
| WiFi | No | WiFi 7 |
Dimension comparison
Overview of the Motherboards
When comparing the ASRock B550 Phantom Gaming 4 AC and the ASUS ROG Strix X870E-E Gaming WiFi, the most significant difference lies in their intended audience and features. The ASRock B550 is designed for gamers looking to support 3rd Gen AMD AM4 Ryzen processors, while the ASUS ROG Strix X870E-E is built for future-proofing with AMD AM5 processors, emphasizing advanced features. Priced at $100.71, the ASRock B550 is about 74% cheaper than the ASUS ROG Strix at $394.99, making it an attractive option for budget-conscious consumers.
Target Audience and Use Case
The ASRock B550 Phantom Gaming 4 AC caters to gamers who want reliability without breaking the bank. It supports 3rd Gen AMD AM4 Ryzen processors, making it suitable for mid-range gaming setups. Conversely, the ASUS ROG Strix X870E-E is tailored for high-end gaming enthusiasts and professionals aiming to harness the latest AMD technology with support for AMD Ryzen 9000, 8000, and 7000 series processors. This motherboard’s advanced features and robust design make it ideal for those looking to optimize performance in demanding applications.
Performance and Power Delivery
In terms of power delivery, the ASUS ROG Strix X870E-E excels with its 18+2+2 power stages, which are essential for supporting multi-core processors and demanding workloads. This motherboard is rated for 110A per stage, ensuring maximum efficiency and stability under load. The ASRock B550 features an 8 power phase design, which is adequate for its target processors, but it may not deliver the same level of performance under stress as the ASUS option. If you’re planning to push your system to the limits, the ASUS ROG Strix is the clear winner.
Memory Support and Speed
The ASRock B550 Phantom Gaming 4 AC supports DDR4 memory up to 4733MHz (OC), which is satisfactory for most gaming and general use cases. However, the ASUS ROG Strix X870E-E is a step ahead, supporting DDR5 memory, which is the latest standard, offering improved performance and bandwidth. This makes the ASUS board more future-proof, especially as memory technology continues to evolve. For users seeking the best memory performance, the ASUS ROG Strix is the superior choice.
Connectivity Options
When it comes to connectivity, the ASUS ROG Strix X870E-E provides a plethora of options, including five M.2 slots and dual USB4 Type-C ports, catering to a wide range of peripherals and storage solutions. The ASRock B550, while featuring one PCIe 4.0 x16 and one PCIe 3.0 x16 slot, offers less flexibility for expansion. This difference is crucial for gamers and professionals needing extensive connectivity for their devices. Therefore, those who prioritize connectivity should consider the ASUS ROG Strix X870E-E.
Thermal Management
Thermal management is vital for sustaining performance, especially in high-demand scenarios. The ASUS ROG Strix X870E-E incorporates a robust thermal design with massive heatsinks and integrated thermal pads, ensuring that the M.2 drives remain cool even under heavy use. In contrast, the ASRock B550 does not highlight any advanced thermal solutions, which could impact performance during prolonged gaming sessions. For users concerned about heat management, the ASUS ROG Strix offers a more comprehensive approach.
Additional Features
The ASUS ROG Strix X870E-E is packed with features aimed at enhancing the user experience, such as AI Overclocking, AI Cooling II, and customizable networking options. These features simplify setup and improve performance, making it an attractive choice for tech-savvy users. The ASRock B550, while offering solid gaming capabilities, lacks the extensive feature set found in the ASUS board. This difference could influence buyers who value additional enhancements in their motherboard experience.
Which should you buy?
Ultimately, the choice between the ASRock B550 Phantom Gaming 4 AC and the ASUS ROG Strix X870E-E comes down to your specific needs and budget. If you’re looking for an affordable option that supports mid-range AMD processors, the ASRock B550 at $100.71 is a solid choice, especially for casual gamers. However, if you want a high-performance motherboard with cutting-edge features to support the latest AMD Ryzen processors and advanced capabilities, the ASUS ROG Strix X870E-E at $394.99 is worth the investment. Your decision should reflect your gaming requirements, budget, and the need for future-proofing your system.

