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GIGABYTE Z790 UD AC LGA 1700 ATX Motherboard, vs NZXT N9 X870E - AMD X870E AM5 ATX Gaming

Updated August 2026 — NZXT N9 X870E - AMD X870E AM5 ATX Gaming leads on power and connectivity.

The GIGABYTE Z790 UD AC is a budget-friendly option for Intel users, while the NZXT N9 X870E offers advanced features for AMD enthusiasts. Choose based on your CPU preference and budget.

Why GIGABYTE Z790 UD AC LGA 1700 ATX Motherboard, is better

Price

GIGABYTE is significantly cheaper at $149.99.

Intel Support

Supports Intel Core processors.

Basic Features

Adequate for standard gaming needs.

Why NZXT N9 X870E - AMD X870E AM5 ATX Gaming is better

Power Delivery

Superior 20+2+1 power phase design.

Memory Speed

Supports DDR5 speeds of 8000+ MT/s.

Connectivity

Includes USB 4 and Wi-Fi 7.

Overall score

GIGABYTE Z790 UD AC LGA 1700 ATX Motherboard,
75
NZXT N9 X870E - AMD X870E AM5 ATX Gaming
90

Specifications

SpecGIGABYTE Z790 UD AC LGA 1700 ATX Motherboard,NZXT N9 X870E - AMD X870E AM5 ATX Gaming
SocketLGA 1700AM5
M.2 Slots34
Wi-FiDual BandWi-Fi 7
Power Phases16+1+120+2+1
DDR5 SupportUp to 4800 MT/s8000+ MT/s

Dimension comparison

GIGABYTE Z790 UD AC LGA 1700 ATX Motherboard,NZXT N9 X870E - AMD X870E AM5 ATX Gaming

Overview of the GIGABYTE Z790 UD AC and NZXT N9 X870E

The GIGABYTE Z790 UD AC is priced at $149.99, making it about 70% cheaper than the NZXT N9 X870E, which retails for $499.99. This price difference indicates a significant disparity in target audiences; the GIGABYTE model aims at budget-conscious gamers, while the NZXT board caters to those seeking premium features. Both motherboards are designed for high-performance gaming, but they support different CPU architectures, which could influence buyer decisions based on user needs.

Compatibility with Processors

The GIGABYTE Z790 UD AC supports Intel Core 14th, 13th, and 12th generation processors, making it a solid choice for Intel enthusiasts. In contrast, the NZXT N9 X870E is built for AMD Ryzen 9000, 8000, and 7000 series processors. This key difference in compatibility highlights the necessity for consumers to consider their preferred CPU brand before making a choice. If you already own an Intel CPU, the GIGABYTE model is the clear choice, while AMD users should lean towards the NZXT.

Power Delivery Systems

The GIGABYTE Z790 UD AC features a sturdy 16+1+1 power phase design, which is adequate for most gaming setups. However, the NZXT N9 X870E takes it a step further with a superior 20+2+1 power phase design that includes 110A Smart Power Stages. This advanced power delivery system ensures stable performance, especially during high-demand gaming and overclocking scenarios. Gamers looking for maximum power efficiency and stability should consider the NZXT model over the GIGABYTE.

Memory Support

For memory enthusiasts, both motherboards support DDR5 RAM, but the NZXT N9 X870E offers more advanced capabilities. The GIGABYTE Z790 UD AC supports dual-channel DDR5 with four DIMM slots, while the NZXT model can handle DDR5 speeds of 8000+ MT/s, indicating its superior performance in multitasking and responsiveness. Users who plan on pushing their systems to the limit with high memory speeds will find the NZXT N9 X870E to be a more suitable option.

Expansion and Storage Options

When it comes to storage potential, the NZXT N9 X870E offers more flexibility with four M.2 slots, including one PCIe 5.0 for ultra-fast storage solutions. In comparison, the GIGABYTE Z790 UD AC has three M.2 slots. This difference could be critical for users planning to install multiple high-speed NVMe drives, as the NZXT provides a better pathway for future upgrades. The GIGABYTE may suffice for standard gaming needs, but users with extensive storage requirements will appreciate the NZXT's superior configuration.

Thermal Management

Cooling solutions are essential in high-performance gaming setups. The GIGABYTE Z790 UD AC includes comprehensive thermal designs with fully covered MOSFET heatsinks and an M.2 Thermal Guard, which are effective for maintaining optimal temperatures. However, the NZXT N9 X870E ups the ante with its advanced VRM heatsink array, dual PWM fans, and dedicated heatsinks for each M.2 slot. Gamers who prioritize thermal performance and overclocking capabilities should consider the NZXT model for its superior cooling efficiency.

Connectivity Features

Connectivity options vary significantly between the two motherboards. The GIGABYTE Z790 UD AC features PCIe 5.0 and SuperSpeed USB 3.2 Gen 2x2 Type-C, which are excellent for fast data transfer. The NZXT N9 X870E, however, offers even more advanced options with USB 4, Wi-Fi 7, and 5GbE connectivity, making it a leader in modern networking capabilities. For users who require the latest in connectivity technology, the NZXT N9 X870E is undoubtedly the way to go.

Which should you buy?

Choosing between the GIGABYTE Z790 UD AC and the NZXT N9 X870E ultimately depends on your specific needs and budget. The GIGABYTE model is an excellent choice for budget-conscious gamers who are using Intel CPUs and require solid performance without breaking the bank at $149.99. On the other hand, if you're looking for advanced features, superior power delivery, and extensive connectivity options, the NZXT N9 X870E justifies its higher price at $499.99. For high-end gaming and future-proofing, the NZXT is the better option, while the GIGABYTE serves well for those on a budget.