GIGABYTE Z790 UD AC LGA 1700 ATX Motherboard, vs MSI MAG B650 Tomahawk WiFi Gaming Motherboard
Updated August 2026 — GIGABYTE Z790 UD AC LGA 1700 ATX Motherboard, wins on power, MSI MAG B650 Tomahawk WiFi Gaming Motherboard wins on memory and thermals.
The GIGABYTE Z790 UD AC offers better value for Intel users, while the MSI MAG B650 Tomahawk excels in memory speed and thermal solutions for AMD users.
Why GIGABYTE Z790 UD AC LGA 1700 ATX Motherboard, is better
Price
GIGABYTE is more affordable at $149.99.
Power Design
GIGABYTE has a robust 16+1+1 power phase.
Compatibility
GIGABYTE supports Intel's latest processors.
Why MSI MAG B650 Tomahawk WiFi Gaming Motherboard is better
Memory Speed
MSI supports up to 6400 MHz DDR5.
Thermal Solutions
MSI features advanced cooling with M.2 Shield Frozr.
Connectivity
MSI includes Wi-Fi 6E and Bluetooth 5.3.
Overall score
Specifications
| Spec | GIGABYTE Z790 UD AC LGA 1700 ATX Motherboard, | MSI MAG B650 Tomahawk WiFi Gaming Motherboard |
|---|---|---|
| Processor Support | Intel 12th-14th Gen | AMD Ryzen 7000 |
| Memory Type | DDR5 | DDR5 |
| PCIe Version | 5.0 | 4.0 |
| Wi-Fi | Dual Band | Wi-Fi 6E |
| USB Ports | USB-C 3.2 | USB 3.2 Gen 2 |
Dimension comparison
Overview of the GIGABYTE Z790 UD AC and MSI MAG B650 Tomahawk
The GIGABYTE Z790 UD AC is priced at $149.99, while the MSI MAG B650 Tomahawk comes at a higher price of $212.39, making it about 41% more expensive. Both motherboards cater to different processor families, with the GIGABYTE supporting Intel's 12th to 14th Gen processors and the MSI designed for AMD's Ryzen 7000 series. This price difference sets the stage for a deeper comparison of features, performance, and suitability for various gaming and computing needs.
Compatibility and Processor Support
The GIGABYTE Z790 UD AC supports Intel Core 14th, 13th, and 12th Gen processors, making it an excellent choice for users looking to leverage the latest Intel technology. Conversely, the MSI MAG B650 Tomahawk is tailored for AMD Ryzen 7000 series processors, which are known for their high-performance capabilities. This distinction is crucial for buyers who have already chosen a processor brand, as each motherboard is optimized for its respective architecture. Thus, the decision between these two motherboards largely hinges on your choice of processor.
Memory and Performance
The GIGABYTE Z790 UD AC supports DDR5 memory with a dual-channel configuration across four DIMM slots, offering flexibility for future upgrades. In comparison, the MSI MAG B650 Tomahawk also supports DDR5 memory but can handle speeds up to 6400 MHz when overclocked. This means that while both motherboards provide powerful memory options, the MSI has a slight edge in terms of potential memory speed, which can translate into better performance for high-demand applications and gaming scenarios.
Power Design and Stability
In terms of power delivery, the GIGABYTE Z790 UD AC features a 16+1+1 power phase design, ensuring stable performance even under heavy loads. This robust design is complemented by fully covered MOSFET heatsinks and an ultra-durable armor, which enhances longevity and reliability. On the other hand, the MSI MAG B650 Tomahawk offers a premium thermal solution with an extended heatsink design and M.2 Shield Frozr, specifically engineered for high-performance systems. Both motherboards prioritize stability, but the GIGABYTE may offer better power management for Intel users, while the MSI excels in thermal management.
Connectivity Options
The GIGABYTE Z790 UD AC provides next-generation connectivity options, including PCIe 5.0 and multiple M.2 slots for NVMe SSDs. It also features USB-C 3.2 and dual-band WiFi, making it a well-rounded option for modern setups. In contrast, the MSI MAG B650 Tomahawk is equipped with PCIe 4.0, which, while slightly older, still offers solid performance for most users. The inclusion of Wi-Fi 6E and Bluetooth 5.3 on the MSI board enhances wireless connectivity, making it more suitable for users who prioritize online gaming and streaming.
Thermal Solutions and Cooling
The thermal solutions offered by both motherboards are designed to keep performance stable during intensive tasks. The GIGABYTE Z790 UD AC includes M.2 thermal guards and heatsinks for effective heat dissipation. Meanwhile, the MSI MAG B650 Tomahawk boasts an extended heatsink design and M.2 Shield Frozr, which are specifically intended to maintain optimal temperatures even during prolonged use. Both motherboards excel in this area, but the MSI's military-inspired design emphasizes durability and high-performance cooling.
Aesthetics and Build Quality
In terms of aesthetics, the GIGABYTE Z790 UD AC features RGB Fusion for customizable lighting, allowing users to personalize their builds. It is designed with a focus on durability, with a six-layer PCB construction that supports its robust performance claims. The MSI MAG B650 Tomahawk, with its military-inspired elements, not only looks impressive but also emphasizes sturdiness and reliability. Both boards are well-built, but the choice between them may depend on personal preference regarding style and visual customization options.
Pricing and Value Proposition
The GIGABYTE Z790 UD AC is priced at $149.99, which represents significant value, especially for gamers and PC builders looking for high-performance features without breaking the bank. In comparison, the MSI MAG B650 Tomahawk, priced at $212.39, is about $62.40 more expensive, which may deter budget-conscious consumers. However, its additional features, such as superior memory speed support and advanced thermal solutions, may justify the higher price for some users. Ultimately, the decision will depend on individual priorities, such as budget versus advanced specifications.
Which should you buy?
Choosing between the GIGABYTE Z790 UD AC and the MSI MAG B650 Tomahawk ultimately depends on your specific needs and preferences. If you're an Intel user seeking a cost-effective motherboard with solid performance and features, the GIGABYTE Z790 UD AC is an excellent choice. However, if you prefer AMD processors and desire higher memory speed capabilities along with advanced cooling solutions, the MSI MAG B650 Tomahawk may be worth the investment. Each motherboard excels in its own right, making them both formidable options in the competitive motherboard market.

