Asus Prime B860M-A VS Gigabyte B860M Gaming X

At the platform level, the Asus Prime B860M-A and Gigabyte B860M Gaming X are near-identical twins: both use the LGA 1851 socket with the B860 chipset, share the same Micro-ATX footprint at 244 × 244 mm, output video over HDMI 2.1, and carry a 3-year warranty. Neither board includes integrated Wi-Fi, Bluetooth, an integrated CPU, or onboard graphics, so buyers of either will need to factor in a discrete GPU and, if wireless connectivity matters, a separate adapter or PCIe card.

Both boards also share a strong feature set for their class: dual BIOS protection provides a recovery fallback if a firmware update goes wrong, RGB lighting is present on each, and both are rated easy to overclock — a notable inclusion given that the B860 chipset imposes memory overclocking limits compared to Z-series boards, so ease of access to those settings still matters.

The sole differentiator in this group is easy BIOS reset: the Prime B860M-A supports it, while the B860M Gaming X does not. In practice this means the Asus board offers a more accessible recovery path — typically a dedicated button or jumper that lets users clear the CMOS without disassembling the system or shorting pins — which is a genuine convenience advantage for builders who experiment with settings. On this group's data alone, the Asus Prime B860M-A holds a narrow but real edge for ease of maintenance and recovery.

Both the Asus Prime B860M-A and the Gigabyte B860M Gaming X support a maximum memory amount of 256GB and feature 4 memory slots. They also both use DDR5 memory and support dual memory channels, ensuring good memory bandwidth for tasks that require high-speed access.

One key difference between the two is the overclocked RAM speed. The Asus Prime B860M-A supports an overclocked RAM speed of up to 8666 MHz, while the Gigabyte B860M Gaming X offers a higher overclocked RAM speed of 9200 MHz. Both motherboards do not support ECC memory, so they are not designed for error-correcting code functionality.

In summary, both motherboards are similar in terms of maximum memory support and general memory configuration, with the Gigabyte B860M Gaming X offering a slight edge in overclocked RAM speed compared to the Asus Prime B860M-A.

The Asus Prime B860M-A and the Gigabyte B860M Gaming X both offer HDMI outputs, with the Asus model also providing two DisplayPort outputs, while the Gigabyte model has only one. Both motherboards feature an RJ45 port for network connectivity and USB Type-C support, but they differ in their USB port configurations. The Asus Prime B860M-A has 1 USB 3.2 Gen 2 (USB-A), 2 USB 3.2 Gen 1 (USB-A), and 4 USB 2.0 ports, while the Gigabyte B860M Gaming X offers 3 USB 3.2 Gen 1 (USB-A), 5 USB 2.0 ports, and includes 1 USB 4 40Gbps port and 1 Thunderbolt 4 port, which are absent on the Asus motherboard.

Additionally, the Asus Prime B860M-A includes 1 USB 3.2 Gen 2x2 port, which is not found on the Gigabyte model. Neither motherboard includes eSATA ports, DVI outputs, a VGA connector, or PS/2 ports.

In terms of USB and video outputs, the Gigabyte model has a slight edge with its inclusion of USB 4 and Thunderbolt 4 ports, while the Asus model stands out with its USB 3.2 Gen 2x2 port and dual DisplayPort outputs.

The Asus Prime B860M-A and the Gigabyte B860M Gaming X are quite similar in terms of connectors. Both offer 2 USB 3.2 Gen 1 ports and 2 USB 2.0 ports through expansion, as well as 4 SATA 3 connectors. They also provide 2 M.2 sockets and feature a TPM connector, which is available on both models. However, the Asus motherboard includes 5 fan headers, while the Gigabyte model has only 4.

Both motherboards have 2 USB 3.0 ports through expansion, and neither includes U.2 or mSATA connectors. Additionally, both lack SATA 2 connectors.

Overall, the main difference between the two models in this category is the number of fan headers, with the Asus Prime B860M-A providing one additional header compared to the Gigabyte B860M Gaming X.

The Asus Prime B860M-A and the Gigabyte B860M Gaming X both feature a PCIe 5.0 x16 slot. The Asus model includes one PCIe 4.0 x16 slot, while the Gigabyte model does not. Additionally, the Asus motherboard has one PCIe x1 slot, while the Gigabyte motherboard does not include any PCIe x1 slots. The Gigabyte model does feature one PCIe x4 slot, which is not present on the Asus model.

Neither motherboard includes PCI slots, PCIe 2.0 x16 slots, or PCIe x8 slots.

In summary, the main differences between the two motherboards in terms of expansion slots are the inclusion of an additional PCIe 4.0 x16 slot on the Asus Prime B860M-A and the PCIe x4 slot on the Gigabyte B860M Gaming X.

Both the Asus Prime B860M-A and the Gigabyte B860M Gaming X offer 7.1 audio channels, ensuring high-quality sound for gaming and media. Neither motherboard has an S/PDIF Out port, and both feature 3 audio connectors, providing the same audio connectivity options.

In summary, the audio specifications of both motherboards are identical, with both offering 7.1 audio channels, no S/PDIF Out port, and 3 audio connectors.

Both the Asus Prime B860M-A and the Gigabyte B860M Gaming X support RAID 1, RAID 10 (1+0), and RAID 5 configurations, providing flexibility for users looking to set up different types of storage arrays. Neither motherboard supports RAID 0+1, but they both allow for RAID 0, which is commonly used for performance-oriented setups.

In summary, the storage capabilities of both motherboards are identical, as they support the same RAID configurations, including RAID 1, RAID 10 (1+0), RAID 5, and RAID 0, while excluding RAID 0+1.