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ASRock B450M/AC R2.0 AM4 AMD Promontory B450 SATA vs Asus TPM-SPI Trusted Platform Module

Updated July 2026 — ASRock B450M/AC R2.0 AM4 AMD Promontory B450 SATA wins on price and performance, Asus TPM-SPI Trusted Platform Module wins on security.

The ASRock B450M/AC R2.0 is a superior choice for performance, while the Asus TPM-SPI offers a budget-friendly security enhancement.

Why ASRock B450M/AC R2.0 AM4 AMD Promontory B450 SATA is better

Performance

Supports high-end AMD processors

Expansion

Includes multiple PCIe slots

Memory Support

Supports DDR4 up to 3200 MHz

Why Asus TPM-SPI Trusted Platform Module is better

Price

Significantly cheaper

Security

Enhances data protection

Size

Compact module design

Overall score

ASRock B450M/AC R2.0 AM4 AMD Promontory B450 SATA
85
Asus TPM-SPI Trusted Platform Module
65

Specifications

SpecASRock B450M/AC R2.0 AM4 AMD Promontory B450 SATAAsus TPM-SPI Trusted Platform Module
Socket TypeAM4N/A
Memory TypeDDR4N/A
PCIe Slots2N/A
TPM VersionN/A2.0
ChipN/ANuvoton NPCT750

Dimension comparison

ASRock B450M/AC R2.0 AM4 AMD Promontory B450 SATAAsus TPM-SPI Trusted Platform Module

Overview of the ASRock B450M/AC R2.0 and Asus TPM-SPI

The ASRock B450M/AC R2.0 is a micro ATX motherboard designed for AMD processors, while the Asus TPM-SPI is a trusted platform module aimed at enhancing computer security. At a price of $79.00, the ASRock motherboard is significantly more expensive than the Asus TPM-SPI, which retails for $22.42. This price difference of about 253% reflects the different roles these products play in a computer system.

Performance and Features

The ASRock B450M/AC R2.0 supports the AMD AM4 socket and is compatible with Ryzen 2000, 3000, 4000 G-Series, and 5000 series processors, demonstrating its capability to handle modern computing tasks efficiently. It also supports DDR4 memory up to 3200 MHz, which enhances overall system performance. The inclusion of one PCIe 3.0 x16 slot and one PCIe 2.0 x16 slot allows for flexible expansion options. In contrast, the Asus TPM-SPI focuses on security rather than performance. It features a Nuvoton NPCT750 chip and complies with TPM 2.0 specifications, which are essential for secure data storage and system integrity.

Compatibility

Compatibility is a critical factor when choosing hardware components. The ASRock B450M/AC R2.0 is designed specifically for AMD processors, thus appealing to users who prefer AMD's architecture. It is compatible with a wide range of Ryzen CPUs, making it a versatile choice for gamers and content creators. On the other hand, the Asus TPM-SPI is designed to integrate seamlessly with modern systems that support UEFI OS and Windows 10. Users looking to enhance their security will find this module beneficial, but it does not serve as a standalone product and requires a compatible motherboard.

Price Comparison

In terms of pricing, the ASRock B450M/AC R2.0 is positioned at $79.00, while the Asus TPM-SPI is priced at $22.42. This makes the Asus product about 71% cheaper than the ASRock motherboard. For users on a budget or those looking to enhance security without investing heavily in hardware, the Asus TPM-SPI provides a more economical option. However, for those requiring a motherboard that supports powerful AMD processors, the ASRock offers greater value despite its higher price.

Use Cases

When considering use cases, the ASRock B450M/AC R2.0 is ideal for individuals building a new gaming rig or a high-performance workstation. Its support for multiple AMD processors and expansion slots makes it suitable for demanding applications. In contrast, the Asus TPM-SPI is best for users who already have a compatible motherboard and want to enhance their computer's security features. It is particularly useful for businesses or individuals concerned about data protection, making it an essential addition for security-conscious users.

Brand Reputation

Brand reputation can influence purchasing decisions. ASRock is well-regarded in the motherboard market for offering reliable and affordable products, particularly for AMD users. Their B450M/AC R2.0 is no exception, featuring a solid build quality and good performance. ASUS, on the other hand, is known for its innovation and quality in the PC hardware space. The Asus TPM-SPI is a trusted solution for security, reflecting the brand's commitment to enhancing user safety in computing environments.

Customer Support and Warranty

Both ASRock and ASUS provide customer support and warranty options, although these can differ significantly. ASRock typically offers a standard warranty, ensuring that users have access to support should they encounter issues with their motherboard. ASUS also has a reputation for good customer service, especially for their security products like the TPM-SPI. Users can expect responsive support and resources to help troubleshoot any problems, adding value to both products.

Which should you buy?

Choosing between the ASRock B450M/AC R2.0 and the Asus TPM-SPI depends on your needs. If you are building a new system or upgrading an existing one with a focus on performance, the ASRock motherboard is the better choice, offering compatibility with a wide range of AMD processors and advanced features for gamers and professionals alike. Conversely, if you already have a suitable motherboard and are looking to enhance your computer's security at a lower cost, the Asus TPM-SPI is an excellent option. Ultimately, your decision should align with your specific requirements, whether they prioritize performance or security.