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ASRock B550M-HDV Socket AM4 Micro-ATX Motherboard vs Gigabyte A520I AC

Updated August 2026 — ASRock B550M-HDV Socket AM4 Micro-ATX Motherboard wins on performance and connectivity, Gigabyte A520I AC wins on size.

The ASRock B550M-HDV offers superior performance and connectivity options, while the Gigabyte A520I AC excels in wireless capabilities and compact design.

Why ASRock B550M-HDV Socket AM4 Micro-ATX Motherboard is better

Performance

Higher memory support and overclocking capabilities.

Connectivity

More USB ports and video outputs.

Cooling

Better power delivery and thermal management.

Why Gigabyte A520I AC is better

Size

Mini-ITX form factor for compact builds.

Wireless

Includes Intel WiFi and Bluetooth.

BIOS

Q-Flash Plus for easy BIOS updates.

Overall score

ASRock B550M-HDV Socket AM4 Micro-ATX Motherboard
85
Gigabyte A520I AC
78

Specifications

SpecASRock B550M-HDV Socket AM4 Micro-ATX MotherboardGigabyte A520I AC
Form FactorMicro-ATXMini-ITX
Memory SupportDDR4 4733+(OC)DDR4
PCIe VersionPCIe 4.0PCIe 3.0
Audio CodecRealtek ALC887/897ALC887
LANGigabit1GbE

Dimension comparison

ASRock B550M-HDV Socket AM4 Micro-ATX MotherboardGigabyte A520I AC

Overview of ASRock B550M-HDV and Gigabyte A520I AC

The ASRock B550M-HDV is priced at $99.20, while the Gigabyte A520I AC is slightly more expensive at $99.99. This makes the ASRock board about 0.79% cheaper than the Gigabyte option. Both motherboards are designed for AMD Ryzen processors, offering solid features for various builds. However, their unique specifications cater to different user needs, making it essential to examine them closely.

Performance and Compatibility

The ASRock B550M-HDV supports a wide range of AMD Socket AM4 processors, including the popular Ryzen 5000, 4000, and 3000 Series. It is optimized for high-performance tasks and has an impressive memory support of up to DDR4 4733+(OC). In contrast, the Gigabyte A520I AC is designed specifically for 3rd Gen AMD Ryzen processors. While it supports dual-channel DDR4 memory, it does not match the ASRock's overclocking capabilities. Thus, if you require cutting-edge performance and overclocking potential, the ASRock motherboard stands out.

Form Factor and Design

The ASRock B550M-HDV follows a Micro-ATX form factor, making it suitable for a range of mid-tower cases. Conversely, the Gigabyte A520I AC employs a Mini-ITX design, which is more compact and ideal for smaller builds. This makes the Gigabyte a better option for users aiming to create a compact gaming rig or a space-saving workstation. The choice of form factor ultimately depends on your specific build requirements and space constraints.

Connectivity Options

When it comes to connectivity, the ASRock B550M-HDV offers a more versatile selection with six USB 3.2 Gen1 ports, Gigabit LAN, and multiple video outputs, including HDMI (4K 60Hz), DVI-D, and D-Sub. This makes it suitable for users who need to connect multiple peripherals or monitors. The Gigabyte A520I AC, while still providing solid connectivity, features only one NVMe PCIe 3.0 x4 M.2 slot and lacks the extensive video output options of its competitor. Therefore, the ASRock motherboard is more advantageous for users requiring diverse connectivity solutions.

Audio and Networking

Both motherboards provide reliable audio performance, with the ASRock B550M-HDV featuring 7.1 channel HD Audio powered by Realtek ALC887/897, while the Gigabyte A520I AC utilizes the ALC887 Audio Codec. The difference in audio quality may not be significant for general users, but audiophiles may want to consider this aspect. In terms of networking, the ASRock includes Gigabit LAN, while the Gigabyte motherboard adds Intel Dual Band AC WiFi and Bluetooth, offering enhanced wireless capabilities. For those who prioritize wireless connectivity, the Gigabyte A520I AC is the clear choice.

Cooling Solutions

The ASRock B550M-HDV features a robust power delivery system with a 6 Power Phase design and premium 50A power chokes, ensuring stable performance during demanding tasks. This design also aids in effective cooling, reducing thermal throttling during overclocking. The Gigabyte A520I AC offers an optimized VRM heatsink and a Direct 6 Phases Digital PWM with 55A DrMOS, which is commendable but may not reach the cooling efficiency of the ASRock under intense loads. Users focused on maintaining lower temperatures during heavy usage may prefer the ASRock motherboard.

Ease of Use and Installation

Both motherboards are designed with user-friendliness in mind. The ASRock B550M-HDV includes dedicated support for any questions or issues via Amazon, which can be beneficial for less experienced builders. On the other hand, the Gigabyte A520I AC features Q-Flash Plus, allowing for easy BIOS updates without a CPU or memory installed. This feature can be particularly useful for users who want to ensure their board is up-to-date before building. Depending on your level of expertise, either board could provide a smooth installation experience.

Which should you buy?

In conclusion, choosing between the ASRock B550M-HDV and the Gigabyte A520I AC depends significantly on your specific needs. The ASRock offers superior performance potential with extensive connectivity options and better cooling solutions, making it suitable for those requiring high-performance builds. Conversely, the Gigabyte A520I AC excels in wireless connectivity and compact design, ideal for smaller setups. If budget is a key factor, the ASRock is the slightly cheaper option at $99.20 compared to the $99.99 price tag on the Gigabyte. Ultimately, your decision should reflect your performance needs, space considerations, and preferences for connectivity.