Is the pricier motherboard worth it for this gaming build?

For gaming performance, the motherboard itself usually won’t make a noticeable difference once both boards support the CPU properly. The extra cost is mainly about features, not higher frame rates.

Compare the exact specifications for the things you might use: USB4 or Thunderbolt, number and speed of M.2 slots, PCIe slots, networking, and rear and internal USB connections. If the Gigabyte has everything you need, it looks like the more sensible value.

The X870-A is a higher-feature board, but that does not automatically make it a better fit. Its extra connectivity and storage options could be useful if you have a specific plan for them. Check the lane-sharing notes, too, since using a second fast M.2 slot may affect the graphics-card slot’s bandwidth.

For a typical gaming setup with one or two SSDs, those extras may sit unused. I’d choose based on the feature list rather than the chipset label alone.

I’d put the saved money toward the GPU, monitor, or storage if the cheaper board has the ports and slots you need. A high-end CPU and graphics card don’t require an expensive motherboard just for gaming.

Before buying, check that the board’s BIOS supports the processor and that its power delivery and cooling are suitable. Also compare warranty terms and local support, since brand reputation by itself won’t tell you how a particular model will work out.

There are scattered reports online about CPU failures with some motherboard and processor combinations, but anecdotes alone don’t establish that a specific board is unsafe. I wouldn’t choose one based only on alarming posts. Check current BIOS updates and any official compatibility or support notices for the exact models.

If both boards meet your needs, paying twice as much to avoid an unverified risk doesn’t seem justified. Buy from a seller with a clear return policy either way.