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ASRock B550 Phantom Gaming 4 AC Supports 3rd Gen vs GIGABYTE Z790 AORUS Elite AX LGA 1700 ATX

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

The ASRock B550 Phantom Gaming 4 AC is a budget-friendly option for gamers, while the GIGABYTE Z790 AORUS Elite AX offers superior performance and features for enthusiasts.

Why ASRock B550 Phantom Gaming 4 AC Supports 3rd Gen is better

Price

ASRock is significantly cheaper at $100.71.

AMD Support

Supports 3rd Gen AMD Ryzen processors.

Value

Good performance for budget builds.

Why GIGABYTE Z790 AORUS Elite AX LGA 1700 ATX is better

Performance

Higher power phase design for better overclocking.

Memory Support

Supports DDR5 for improved performance.

Connectivity

More M.2 slots and USB 3.2 Type-C support.

Overall score

ASRock B550 Phantom Gaming 4 AC Supports 3rd Gen
75
GIGABYTE Z790 AORUS Elite AX LGA 1700 ATX
88

Specifications

SpecASRock B550 Phantom Gaming 4 AC Supports 3rd GenGIGABYTE Z790 AORUS Elite AX LGA 1700 ATX
SocketAM4LGA 1700
DDR SupportDDR4DDR5
PCIe Slots46
CoolingBasicAdvanced
RGBNoYes

Dimension comparison

ASRock B550 Phantom Gaming 4 AC Supports 3rd GenGIGABYTE Z790 AORUS Elite AX LGA 1700 ATX

Overview of the ASRock B550 Phantom Gaming 4 AC and GIGABYTE Z790 AORUS Elite AX

The ASRock B550 Phantom Gaming 4 AC is priced at $100.71, while the GIGABYTE Z790 AORUS Elite AX is significantly more expensive at $189.99, making it about 88% pricier. This price difference reflects the distinct target audiences and features of each motherboard. The ASRock motherboard is designed to support AMD's 3rd Gen Ryzen processors, making it a solid choice for budget-conscious gamers, while the GIGABYTE model caters to high-end users looking to utilize Intel's latest 14th Gen processors.

Target Audience and Use Case

The ASRock B550 Phantom Gaming 4 AC is tailored for gamers who seek performance without breaking the bank. Its support for AMD's Ryzen processors allows budget builds to run smoothly, particularly for those who prioritize gaming and everyday tasks. Conversely, the GIGABYTE Z790 AORUS Elite AX is aimed at enthusiasts and professionals who need cutting-edge performance, as it supports Intel's latest processors, including the 14th Gen series. Users aiming for high-performance gaming, content creation, or any resource-intensive tasks will find the GIGABYTE motherboard more suited to their needs.

Power Design and Efficiency

The ASRock B550 features an 8 Power Phase Design, which provides reliable power delivery for moderate overclocking and stable operation. This design helps ensure that the motherboard can handle the power demands of a typical gaming setup. On the other hand, the GIGABYTE Z790 boasts a commanding 16+1+2 Phases Digital VRM Solution with a robust 70A Power Stage. This advanced power design not only improves stability during heavy loads but also enhances overclocking potential, making it a better choice for users who want to push their hardware to the limit.

Memory Support and Performance

The ASRock B550 supports DDR4 memory with speeds up to 4733+ (OC), which is ample for gaming and general use. This makes it a solid option for users who want a reliable and cost-effective solution for their memory needs. In comparison, the GIGABYTE Z790 supports DDR5 memory, allowing for higher data transfer rates and improved overall system performance. With 4 SMD DIMMs and XMP 3.0 Memory Module Support, it provides flexibility for users looking to utilize the latest in memory technology, making it more future-proof than the ASRock motherboard.

Expansion Slots and Connectivity

When it comes to expansion, the ASRock B550 provides good options with 1 PCIe 4.0 x16, 1 PCIe 3.0 x16, and 2 PCIe 3.0 x1 slots, allowing users to install multiple graphics cards or other expansion cards as needed. The GIGABYTE Z790 excels in this area with four PCIe 4.0 x4 M.2 slots, which are ideal for high-speed SSDs, along with USB 3.2 Gen 2x2 Type-C support. This level of connectivity and expansion capability makes the GIGABYTE motherboard a superior choice for users who require extensive I/O and high-speed storage options.

Thermal Management

Thermal management is crucial for maintaining performance, especially in high-demand scenarios. The ASRock B550 includes basic cooling solutions suitable for most gaming setups. However, the GIGABYTE Z790 features advanced thermal solutions including M.2 Thermal Guard III and fully covered MOSFET heatsinks. This design not only helps maintain lower temperatures but also extends the lifespan of components. The Z790's superior thermal management is essential for overclockers and gamers who push their systems hard.

Aesthetic Features

Both motherboards come with distinct aesthetic features catering to different tastes. The ASRock B550 Phantom Gaming 4 AC is designed with a gamer-friendly appearance, emphasizing a bold and aggressive look. In contrast, the GIGABYTE Z790 AORUS Elite AX emphasizes RGB Fusion for customizable lighting effects, appealing to gamers who want to personalize their builds. This aesthetic advantage could be a deciding factor for users who prioritize visual appeal in their PC setups.

Which should you buy?

Choosing between the ASRock B550 Phantom Gaming 4 AC and the GIGABYTE Z790 AORUS Elite AX ultimately depends on your needs and budget. The ASRock B550 offers excellent value for gamers looking for a budget-friendly option that supports AMD's Ryzen processors at a price of $100.71. However, if you are an enthusiast or professional looking for top-tier performance, advanced connectivity, and extensive overclocking capabilities, the GIGABYTE Z790 at $189.99 provides features that justify its higher price tag.