The Gigabyte B850 Aorus Stealth Ice and the Gigabyte X870 Aorus Stealth Ice both share similar specifications in many areas, including CPU socket type, chipset, form factor, and support for Wi-Fi and Bluetooth. Both motherboards use the AM5 CPU socket, are built in an ATX form factor, and offer support for a wide range of Wi-Fi standards from Wi-Fi 4 up to the latest Wi-Fi 7 (802.11be). They also both feature Bluetooth 5.4 (on the B850) and Bluetooth 5.3 (on the X870), with the only difference being the Bluetooth version. Additionally, both models support HDMI 2.1 and include RGB lighting, and both have a 3-year warranty period.
However, there are a few key differences between the two models. The Gigabyte B850 Aorus Stealth Ice offers dual BIOS, which provides additional redundancy in case of BIOS failure, while the X870 Aorus Stealth Ice does not include this feature. The X870 also has a slightly older Bluetooth version (5.3) compared to the B850 (5.4). Another notable difference is that the B850 supports the easy process of overclocking, which is consistent with the X870's overclocking support as well, though both are similarly designed for easy overclocking.
In terms of size, both products are identical with the same height (244 mm) and width (305 mm), and neither product offers integrated graphics or an integrated CPU. Neither of the models offers the ability to easily reset the BIOS, and neither has aptX support. Both motherboards also feature a single CPU socket, emphasizing their design for high-performance systems without integrated graphics.