GIGABYTE Z790 UD AC LGA 1700 ATX Motherboard, vs MSI MAG B850 Tomahawk MAX WiFi Motherboard, ATX
Updated August 2026 — MSI MAG B850 Tomahawk MAX WiFi Motherboard, ATX leads on memory support and performance.
The GIGABYTE Z790 UD AC offers solid performance at a lower price, while the MSI MAG B850 Tomahawk MAX WiFi excels in advanced features and connectivity.
Why GIGABYTE Z790 UD AC LGA 1700 ATX Motherboard, is better
Price
GIGABYTE is more budget-friendly at $149.99.
Power Phase
GIGABYTE has a 16+1+1 power phase design.
RGB Lighting
GIGABYTE features customizable RGB Fusion lighting.
Why MSI MAG B850 Tomahawk MAX WiFi Motherboard, ATX is better
Power Delivery
MSI has a superior 14 Duet Rail Power System.
Memory Speed
MSI supports DDR5 speeds up to 8400 MT/s.
Connectivity
MSI includes Wi-Fi 7 and 5G LAN.
Overall score
Specifications
| Spec | GIGABYTE Z790 UD AC LGA 1700 ATX Motherboard, | MSI MAG B850 Tomahawk MAX WiFi Motherboard, ATX |
|---|---|---|
| Socket | LGA 1700 | AM5 |
| DDR Support | DDR5 | DDR5 |
| PCIe Version | 5.0 | 5.0 |
| M.2 Slots | 3 | 4 |
| Wi-Fi | Dual Band | Wi-Fi 7 |
Dimension comparison
Overview of the GIGABYTE Z790 UD AC
The GIGABYTE Z790 UD AC is an ATX motherboard designed for Intel processors, supporting the latest 14th, 13th, and 12th generation Intel Core CPUs. Priced at $149.99, it offers a robust feature set geared towards gamers and high-performance users. This motherboard incorporates a 16+1+1 power phase design, ensuring efficient power delivery and stability during intense workloads. With support for DDR5 memory, users can take advantage of faster speeds and improved performance for their systems.
The Z790 UD AC boasts advanced thermal designs, including fully covered MOSFET heatsinks and an M.2 thermal guard. It also features next-gen connectivity options such as PCIe 5.0 and multiple USB ports, including USB-C 3.2. This makes it an appealing choice for users looking to build a high-performance gaming or productivity system.
Overview of the MSI MAG B850 Tomahawk MAX WiFi
The MSI MAG B850 Tomahawk MAX WiFi is a feature-rich ATX motherboard aimed at users with AMD Ryzen processors, specifically the 9000, 8000, and 7000 series. This motherboard comes at a higher price point of $209.99, reflecting its advanced specifications. It employs a 14 Duet Rail Power System with an 80A SPS VRM, designed to handle the power demands of high-performance Ryzen CPUs effectively.
Additionally, the MAG B850 Tomahawk MAX supports DDR5 memory with overclocking capabilities of up to 8400 MT/s. It includes multiple M.2 slots for Gen5 storage options, and advanced connectivity features such as Wi-Fi 7 and 5G LAN, making it a solid choice for gamers and content creators alike.
Performance and Power Delivery
In terms of performance and power delivery, the GIGABYTE Z790 UD AC features a 16+1+1 power phase design, which is designed to ensure stable power under heavy loads. This feature is crucial for gamers who demand high performance during gaming sessions. The motherboard is also equipped with advanced thermal solutions to prevent overheating, ensuring consistent performance.
On the other hand, the MSI MAG B850 Tomahawk MAX WiFi employs a more robust 14 Duet Rail Power System with an impressive 80A SPS VRM. This design aims to deliver superior power efficiency and stability, especially when overclocking Ryzen processors. The difference in power delivery systems indicates that the MSI board might provide better performance under extreme conditions, particularly for users looking to push their hardware to its limits.
Memory Support and Configuration
The GIGABYTE Z790 UD AC supports dual-channel DDR5 memory with a total of four DIMM slots, allowing for a versatile memory configuration. While it offers solid performance, the specific maximum speeds were not detailed. However, users can expect good compatibility with high-speed memory modules, enhancing overall system performance.
Conversely, the MSI MAG B850 Tomahawk MAX WiFi stands out with its support for DDR5 memory speeds of up to 8400 MT/s when overclocked. This higher speed capability can translate into better performance in memory-intensive tasks, such as gaming and content creation. The fact that the MSI motherboard supports cutting-edge memory speeds gives it an edge for users focused on high-performance applications.
Connectivity Options
Both motherboards offer modern connectivity options, but they cater to different needs. The GIGABYTE Z790 UD AC includes PCIe 5.0 and multiple USB ports, including USB-C 3.2, which enhances its versatility and future-proofing capabilities. This allows users to connect the latest peripherals and storage devices without limitations.
In contrast, the MSI MAG B850 Tomahawk MAX WiFi excels in connectivity with its full-speed Wi-Fi 7 module, Bluetooth 5.4, and Realtek 5G LAN. These features provide faster internet speeds and improved network stability, particularly beneficial for gamers and streamers. The inclusion of advanced networking capabilities makes the MSI board a more appealing option for users who prioritize connectivity.
Thermal Management
The thermal management of a motherboard is critical for maintaining system stability and performance. The GIGABYTE Z790 UD AC incorporates a comprehensive thermal design, featuring fully covered MOSFET heatsinks and an M.2 thermal guard. This setup helps to dissipate heat effectively, keeping the motherboard cool during intense usage.
The MSI MAG B850 Tomahawk MAX WiFi also emphasizes thermal performance with its FROZR GUARD technology, which includes advanced thermal pads and an extended heatsink. It also features an EZ M.2 Shield Frozr II to prevent thermal throttling during heavy workloads. Both motherboards are designed to manage heat efficiently, but the MSI's enhanced cooling features could provide an advantage in high-performance scenarios.
Aesthetics and Build Quality
When it comes to aesthetics and build quality, both motherboards present a modern and robust design. The GIGABYTE Z790 UD AC is adorned with RGB Fusion lighting, which allows for customizable lighting effects that can enhance the overall look of a gaming rig. Its durable armor and six-layer PCB construction add to its reliability and longevity.
On the other hand, the MSI MAG B850 Tomahawk MAX WiFi features a sleek design with a military-themed aesthetic, appealing to gamers who appreciate a rugged look. It is built with durable server-grade PCBs and PCIe Steel Armor II, ensuring that it can support heavy components without compromising on stability. Both motherboards are well-constructed, but the choice may come down to personal preference in design.
Which should you buy?
When deciding between the GIGABYTE Z790 UD AC and the MSI MAG B850 Tomahawk MAX WiFi, several factors come into play. The GIGABYTE board is more budget-friendly at $149.99, making it an attractive option for gamers looking for solid performance without breaking the bank. It supports Intel's latest processors and offers comprehensive thermal management along with good connectivity options.
In contrast, the MSI board, priced at $209.99, justifies its higher cost with advanced features such as superior power delivery, enhanced memory support, and cutting-edge connectivity options. If you are an AMD user seeking high performance, especially for gaming or content creation, the MSI MAG B850 Tomahawk MAX WiFi could be the better choice.
Ultimately, your decision should hinge on your processor preference, budget considerations, and specific connectivity or performance needs.

