What is the best B450 motherboard overall?

The best B450 motherboard overall is ASUS TUF Gaming B450M Pro S, with an overall score of 6.78 points, the microATX form factor, and a price of around £110. The Asus TUF Gaming B450M-PRO S is a micro-ATX motherboard designed for AMD AM4 socket processors, including the Ryzen 5000 series via BIOS update. It features an upgraded 8+2 DrMOS power stage design with ProCool connectors for improved power delivery and a robust cooling solution that includes enlarged VRM heatsinks and an M.2 heatsink. Runner-up: ASUS ROG Strix B450 F Gaming II, with an overall score of 6.52 points, the ATX form factor, and a price of around £130.

What is the best B450 Mini-ITX motherboard?

The best B450 Mini-ITX motherboard is ASUS ROG Strix B450 I Gaming, with an overall score of 5.79 points and a price of around £150. The ASUS ROG Strix B450-I Gaming is a high-performance Mini-ITX motherboard featuring the AMD AM4 socket and B450 chipset, supporting 1st, 2nd, and 3rd Gen Ryzen processors. Key specifications include two DIMM slots for up to 64GB of DDR4 memory (overclocked up to 3600MHz), dual M.2 slots (one with a dedicated heatsink), onboard 2x2 802.11ac Wi-Fi with MU-MIMO, and SupremeFX S1220A high-definition audio. Runner-up: GIGABYTE B450 I AORUS Pro WiFi, with an overall score of 5.47 points and a price of around £120. Explore our dedicated best Mini-ITX motherboards guide for full model rankings.

What is the best Asus B450 motherboard?

The best Asus B450 motherboard is ASUS TUF Gaming B450M Pro S, with an overall score of 6.78 points, the microATX form factor, and a price of around £110. It also supports DDR4 memory and has 2 M.2 slots. Runner-up: ASUS ROG Strix B450 F Gaming II, with an overall score of 6.52 points, the ATX form factor, and a price of around £130. Explore our dedicated best Asus motherboards guide for full model rankings.

What is the best MSI B450 motherboard?

Leading the MSI B450 lineup is MSI B450 Gaming Pro Carbon AC, delivering an overall score of 6.47 points, the ATX form factor, and retailing for around £150. The MSI B450 Gaming Pro Carbon AC is a premium ATX motherboard featuring the AMD B450 chipset and AM4 socket, supporting up to 64GB of dual-channel DDR4 memory overclocked to 3466 MHz. It distinguishes itself with high-end characteristics including an 8+4 pin power connector for enhanced VRM performance, integrated Intel 9260 802.11ac Wi-Fi, and the Realtek ALC1220 audio codec for superior sound. Runner-up: MSI B450M Mortar Max, with an overall score of 6.19 points, the microATX form factor, and a price of around £80. See our complete best MSI motherboards guide for in-depth comparisons and alternatives.

What is the best Gigabyte B450 motherboard?

Our top-rated Gigabyte B450 motherboard is GIGABYTE B450 AORUS Pro, achieving an overall score of 6.31 points, the ATX form factor, and priced around £130. The Gigabyte B450 Aorus Pro is a feature-rich ATX motherboard designed for the AMD AM4 socket, supporting Ryzen 1000 through 5000 series processors. Key specifications include a hybrid digital 4+3 phase PWM design, four DDR4 DIMM slots supporting up to 64GB at 3600MHz (O.C.), and dual M.2 slots with dedicated thermal guards for high-speed NVMe SSDs. Runner-up: GIGABYTE B450 AORUS Elite, with an overall score of 6.1 points, the ATX form factor, and a price of around £110. For more top-rated models from this brand, check our best Gigabyte motherboards guide.

What is the best ASRock B450 motherboard?

Ranking first among ASRock B450 models is ASRock B450M Steel Legend, with an overall score of 6.16 points, the microATX form factor, and available for around £80. The ASRock B450M Steel Legend is a Micro-ATX motherboard featuring the AMD B450 chipset and AM4 socket, supporting Ryzen 2000 through 5000 series processors. It offers four DDR4 DIMM slots for up to 128GB of RAM at 3533+ MHz (OC), dual M.2 slots (one Ultra M.2 PCIe Gen3 x4 and one M.2 SATA3), and a 6-phase power design with premium 60A power chokes. Runner-up: ASRock B450M PRO4, with an overall score of 6.14 points, the microATX form factor, and a price of around £80. Browse our dedicated best ASRock motherboards guide to compare all evaluated models.

10 best B450 motherboards in 2026 (37+ compared)

What is an B450 motherboard?

Buying Criterion

A B450 motherboard is an AMD chipset released as part of the 400-series platform, designed primarily for Ryzen processors using the AM4 socket.

It came as the successor to the B350, bringing better stability, efficiency, and expanded support for features such as Precision Boost Overdrive and improved memory compatibility. Positioned as a mid-range option, the B450 balances affordability with functionality, making it a popular choice among mainstream users and gamers who want reliable performance without the higher price of X470 or later chipsets.

These boards usually provide enough PCIe lanes for a discrete graphics card, multiple storage devices, and expansion cards, while supporting modern connectivity like USB 3.1 and M.2 NVMe SSDs.

While they do not match the extreme overclocking potential and advanced features of high-end X-series chipsets, B450 motherboards are well-suited for most everyday and gaming builds.

Which brands make the best B450 motherboards?

Market Leaders

The best B450 motherboard brands are as follows.

ASRock Overall score: 6 points
ASUS Overall score: 5.8 points
GIGABYTE Overall score: 5.7 points

The chart below ranks B450 motherboard brands by average overall score.

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How much do B450 motherboards cost?

Price Guide

B540 motherboards cost between £80 and £140 depending on the brand and model.

Entry-level boards stay closer to £80, while higher-end versions with more slots and better VRM designs reach £140. Most boards sit around £100 to £120, which is the common price range for this chipset.

The chipset targets mid-range users, so manufacturers price it below premium lines like X570 or Z590. Prices also change with features such as extra M.2 slots, reinforced PCIe slots, or better audio components. Some brands keep costs lower by reducing USB ports or cutting RGB headers, while others add those features and set a higher price.

The following chart shows the price distribution of B450 motherboards.

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What should you consider while choosing the best B450 motherboard?

Key Factors

When selecting the best B540 motherboard, you should consider the following factors:

VRM quality and power delivery: The voltage regulator module design affects CPU stability and overclocking potential. Higher-quality VRMs with better cooling solutions support sustained performance under heavy workloads. B450 motherboards with robust VRM designs prevent thermal throttling and deliver clean power to processors.
Chipset features and PCIe support: AMD B450 chipset provides specific capabilities including PCIe 3.0 support, USB connectivity options, and SATA ports. The chipset determines available expansion slots, storage interfaces, and overall system bandwidth. B450 offers 6 SATA ports, 36 total PCIe lanes, and native overclocking support.
Memory support and speed: DDR4 memory compatibility ranges from basic 2133MHz to overclocked speeds above 3200MHz. Better motherboards support higher memory frequencies and provide improved memory trace layouts. Memory support affects system responsiveness and application performance across different workloads.
Expansion slots and connectivity: Available PCIe slots determine graphics card installation and additional expansion cards. B450 motherboards typically feature one PCIe 3.0 x16 slot for graphics cards and additional x1 slots for other components. Proper slot configuration prevents bandwidth limitations between connected devices.
I/O Ports and modern standards: Rear panel connectivity includes USB ports, audio jacks, network connections, and display outputs. USB 3.2 Gen2 ports, Gigabit Ethernet, and multiple display outputs provide better device compatibility. Audio solutions with dedicated codecs and shielding deliver superior sound quality for gaming and media applications.

10 best B450 motherboards in 2026 (37+ compared)

1. ASUS TUF Gaming B450M Pro S

2. ASUS ROG Strix B450 F Gaming II

3. ASUS ROG Strix B450 F Gaming

4. MSI B450 Gaming Pro Carbon AC

5. ASUS ROG Strix B450 E Gaming

6. ASUS TUF Gaming B450 Plus II

7. GIGABYTE B450 AORUS Pro

8. MSI B450M Mortar Max

9. ASRock B450M Steel Legend

10. ASRock B450M PRO4

11. GIGABYTE B450 AORUS Elite

12. MSI B450M Mortar Titanium

13. ASRock B450 Steel Legend

14. GIGABYTE B450M AORUS Elite

15. GIGABYTE B450 AORUS M

16. ASUS Prime B450 Plus

17. MSI B450 Tomahawk Max

18. ASUS ROG Strix B450 I Gaming

19. MSI B450 Tomahawk Max II

20. ASUS TUF Gaming B450M Plus II

B450 motherboards: which one should you buy?

What defines the best B450 motherboards?

What is an B450 motherboard?

Which brands make the best B450 motherboards?

How much do B450 motherboards cost?

What should you consider while choosing the best B450 motherboard?

See also...