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GIGABYTE B850M Gaming X WIFI6E AMD AM5 mATX vs GIGABYTE Z790 AORUS Elite AX LGA 1700 ATX

Updated August 2026 — GIGABYTE Z790 AORUS Elite AX LGA 1700 ATX leads on power and connectivity.

The GIGABYTE Z790 AORUS Elite AX offers superior features and performance, making it the better choice for high-end users. However, the B850M Gaming X is a solid budget option.

Why GIGABYTE B850M Gaming X WIFI6E AMD AM5 mATX is better

Price

B850M is $40 cheaper

AMD Support

Supports AMD Ryzen processors

Compact Size

mATX form factor is smaller

Why GIGABYTE Z790 AORUS Elite AX LGA 1700 ATX is better

Power Design

16+1+2 phases for better performance

Connectivity

4 M.2 slots vs 2

Thermal Management

Advanced thermal solutions

Overall score

GIGABYTE B850M Gaming X WIFI6E AMD AM5 mATX
75
GIGABYTE Z790 AORUS Elite AX LGA 1700 ATX
85

Specifications

SpecGIGABYTE B850M Gaming X WIFI6E AMD AM5 mATXGIGABYTE Z790 AORUS Elite AX LGA 1700 ATX
Processor SupportAMD RyzenIntel Core
Power Phase10+2+216+1+2
M.2 Slots24
USB Type-CYesYes
DDR5 SupportYesYes

Dimension comparison

GIGABYTE B850M Gaming X WIFI6E AMD AM5 mATXGIGABYTE Z790 AORUS Elite AX LGA 1700 ATX

Overview of the GIGABYTE B850M Gaming X and GIGABYTE Z790 AORUS Elite AX

The GIGABYTE B850M Gaming X is priced at $149.91, making it the more economical choice compared to the GIGABYTE Z790 AORUS Elite AX, which retails for $189.99. This price difference of about 27% may be significant for budget-conscious consumers. Both motherboards are designed to support cutting-edge technology, but they cater to different processor families and usage scenarios, which is crucial for potential buyers to understand.

Processor Compatibility

When comparing processor compatibility, the GIGABYTE B850M Gaming X supports the AMD Ryzen 9000, 8000, and 7000 series processors. In contrast, the GIGABYTE Z790 AORUS Elite AX is designed for Intel Core 14th, 13th, and 12th generation CPUs. This distinction is essential as it determines the type of performance you can expect based on the chosen processor. If you are leaning towards an AMD setup, the B850M is your go-to option, while Intel enthusiasts will find the Z790 AORUS Elite AX to be more suitable.

Power Design

In terms of power design, the GIGABYTE B850M Gaming X features a 10+2+2 power phase setup, which is sufficient for gaming and general use. On the other hand, the GIGABYTE Z790 AORUS Elite AX boasts a more robust 16+1+2 power phase configuration. This advanced power design allows for better voltage regulation and efficiency, especially beneficial for high-performance tasks and overclocking. Users aiming for the best possible performance from their Intel processors may prefer the Z790’s superior power management system.

Memory Support

Both motherboards support DDR5 memory, which is the latest standard for high-speed RAM. The GIGABYTE B850M Gaming X can accommodate up to four DIMMs, while the Z790 AORUS Elite AX also supports four DIMMs but is enhanced with XMP 3.0 memory module support. This feature allows users to easily overclock their RAM for improved performance. If memory speed and performance are a priority, the Z790 AORUS Elite AX may offer a slight edge.

Connectivity Options

Connectivity is crucial for modern motherboards, and both models excel in this regard. The GIGABYTE B850M Gaming X includes PCIe 5.0, two M.2 slots, and USB-C connectivity, which is excellent for rapid data transfer and high-speed storage options. In comparison, the GIGABYTE Z790 AORUS Elite AX offers even more flexibility with four M.2 slots and advanced USB 3.2 Gen 2x2 Type-C support. For users who intend to utilize multiple high-speed drives or peripherals, the Z790 AORUS Elite AX provides a more extensive array of connectivity options.

Thermal Management

Thermal management is a vital consideration when selecting a motherboard, particularly for gaming and high-performance applications. The GIGABYTE B850M Gaming X employs fully covered MOSFET heatsinks to ensure efficient cooling during intense usage. The Z790 AORUS Elite AX takes this a step further with its M.2 Thermal Guard III and additional thermal solutions, ensuring that the motherboard remains cool and operational even under heavy loads. If maintaining optimal temperatures is a priority, the Z790’s advanced thermal design may be more appealing.

Additional Features

In terms of additional features, the GIGABYTE Z790 AORUS Elite AX shines with its RGB Fusion capability, enabling users to customize lighting effects, which can enhance the aesthetics of a gaming setup. Additionally, it includes Q-Flash for easy BIOS updates. The B850M Gaming X, while it offers great functionality, does not have these extra features. If you're interested in personalizing your build with RGB lighting or require convenient BIOS management, the Z790 AORUS Elite AX may be the better option.

Price Comparison

The GIGABYTE B850M Gaming X is priced at $149.91, which is significantly lower than the GIGABYTE Z790 AORUS Elite AX at $189.99. This price difference of about $40 suggests that the B850M could be the better choice for those on a budget or for users who do not require the extensive features offered by the Z790. For consumers who prioritize cost-effectiveness while still wanting a quality motherboard, the B850M provides excellent value.

Which should you buy?

Ultimately, the decision between the GIGABYTE B850M Gaming X and the GIGABYTE Z790 AORUS Elite AX depends on your specific needs and preferences. If you're looking for a budget-friendly option that still offers solid performance for AMD processors, the B850M Gaming X is an attractive choice. However, if you require advanced features, superior power design, and extensive connectivity options for your Intel setup, the Z790 AORUS Elite AX justifies its higher price tag.