ASRock B550M-HDV Socket AM4 Micro-ATX Motherboard vs GIGABYTE Z790 UD AC LGA 1700 ATX Motherboard,
Updated August 2026 — GIGABYTE Z790 UD AC LGA 1700 ATX Motherboard, leads on memory and power.
The GIGABYTE Z790 UD AC offers superior features and performance, making it the better choice for high-end builds. However, the ASRock B550M-HDV is a solid budget option.
Why ASRock B550M-HDV Socket AM4 Micro-ATX Motherboard is better
Price
ASRock is significantly cheaper.
AMD Support
Supports a wider range of AMD processors.
Compact Size
Micro-ATX form factor fits smaller cases.
Why GIGABYTE Z790 UD AC LGA 1700 ATX Motherboard, is better
Memory
Supports faster DDR5 memory.
Power Delivery
Superior power design for stability.
Connectivity
Includes PCIe 5.0 and more M.2 slots.
Overall score
Specifications
| Spec | ASRock B550M-HDV Socket AM4 Micro-ATX Motherboard | GIGABYTE Z790 UD AC LGA 1700 ATX Motherboard, |
|---|---|---|
| Socket | AM4 | LGA 1700 |
| Memory Type | DDR4 | DDR5 |
| Power Phases | 6 | 16+1+1 |
| M.2 Slots | 1 | 3 |
| USB Ports | 6x USB 3.2 | USB 3.2 Gen 2x2 Type-C |
Dimension comparison
Overview
In this comparison, we will examine the ASRock B550M-HDV and the GIGABYTE Z790 UD AC motherboards. The ASRock B550M-HDV is priced at $99.20, while the GIGABYTE Z790 UD AC retails for $149.99, making the ASRock about 34% cheaper. Both motherboards cater to different processor families and feature sets, which will be explored in detail.
Compatibility
The ASRock B550M-HDV is designed for AMD processors, specifically supporting the Ryzen 5000, 4000, and 3000 series. Its compatibility with a wide range of AMD Socket AM4 processors makes it a flexible choice for budget-friendly builds. On the other hand, the GIGABYTE Z790 UD AC supports Intel's 14th, 13th, and 12th generation processors, utilizing the LGA 1700 socket. This fundamental difference in compatibility dictates which CPU families users can build their systems around, making it crucial for potential buyers to consider their preferred processor brand.
Memory Support
When it comes to memory, the ASRock B550M-HDV supports DDR4 memory with overclocking capabilities of up to 4733 MHz. It features two DDR4 DIMM slots, allowing for dual-channel configurations. Conversely, the GIGABYTE Z790 UD AC supports the newer DDR5 memory and includes four DIMM slots, which enhances its memory capacity and potential speed. This difference highlights the GIGABYTE's more advanced memory support, making it a better option for those looking to build a future-proofed system.
Power Delivery
Power delivery is critical for performance, particularly in high-demand scenarios. The ASRock B550M-HDV incorporates a 6 Power Phase design with premium 50A power chokes, ensuring stable power for supported processors. In contrast, the GIGABYTE Z790 UD AC employs a robust 16+1+1 Twin Hybrid Phases Digital Power Design, featuring 60A DrMOS. This superior power delivery system not only supports higher performance but also enhances system stability, especially during overclocking.
Connectivity Options
In terms of connectivity, the ASRock B550M-HDV offers a solid array of ports, including six USB 3.2 Gen1 ports, Gigabit LAN, and 7.1 channel HD Audio. It also supports PCIe 4.0 for modern graphics cards and has versatile storage options with one Hyper M.2 slot and four SATA3 ports. Meanwhile, the GIGABYTE Z790 UD AC provides next-gen connectivity options, including PCIe 5.0, which is faster than PCIe 4.0, and features three NVMe PCIe 4.0 x4 M.2 slots along with SuperSpeed USB 3.2 Gen 2x2 Type-C. This makes the GIGABYTE a more forward-thinking choice for users who require the latest in connectivity standards.
Thermal Management
Thermal management is essential for maintaining optimal performance, especially during intensive tasks. The ASRock B550M-HDV does not specify advanced thermal management features but is built with sturdy components for reliable performance. In contrast, the GIGABYTE Z790 UD AC boasts a comprehensive thermal design that includes fully covered MOSFET heatsinks and an M.2 Thermal Guard. This advanced thermal management significantly reduces the risk of overheating, providing a more resilient platform for high-performance computing.
Gaming and Performance
For gaming and performance, the ASRock B550M-HDV is built to deliver smooth power delivery and enhanced overclocking capabilities, making it suitable for gamers on a budget. However, the GIGABYTE Z790 UD AC positions itself as a premium gaming motherboard, optimized for the latest Intel processors and equipped with advanced features that unlock superior gaming performance. The GIGABYTE's design and support for faster memory and connectivity options give it a distinct advantage for gamers and high-performance users.
Price Point
The price difference between these two motherboards is significant. The ASRock B550M-HDV is priced at $99.20, while the GIGABYTE Z790 UD AC costs $149.99. This makes the latter about 51% more expensive than the former. However, the additional features, newer technology, and enhanced performance capabilities of the GIGABYTE may justify the higher price for users seeking advanced functionality.
Which should you buy?
Choosing between the ASRock B550M-HDV and the GIGABYTE Z790 UD AC ultimately depends on your specific needs and budget. If you're building a cost-effective system that supports AMD processors and offers reliable performance, the ASRock B550M-HDV is a solid choice at $99.20. However, if you prefer cutting-edge technology, superior power delivery, and advanced connectivity for a high-performance Intel-based system, the GIGABYTE Z790 UD AC at $149.99 may be worth the investment. Consider your processor preference, budget, and performance requirements when making your decision.