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Best ASUS Motherboards Under £100
Buyer's Guide · Comparison

Best ASUS Motherboards Under £100

Updated 3 August 20261 min read2 compared

We tested 3 Best ASUS Motherboards Under £100 to find the top picks for budget builds. Expert reviews, real-world testing, and honest buying advice for 2026.

As an Amazon Associate, we may earn from qualifying purchases. Our ranking is independent.

How we picked

Our editors evaluated 2 Motherboard options against the criteria readers actually weigh up: price, real-world performance, build quality, warranty, and UK availability. Picks lean toward what we'd recommend to a friend buying today, not specs-on-paper winners.

  • Hands-on contextEditor notes from individual reviews, not press releases.
  • Live UK pricingRefreshed from Amazon UK twice daily.
  • No paid placementsAffiliate commission doesn't change what wins.

We're refreshing our picks

Prices for motherboards in this category have moved above £100 since our last review. We track the market daily and will restore the under-£100 recommendations the moment products come back into bracket.

In the meantime, here are the nearest brackets with current picks:

Frequently Asked Questions

Yes, the ASUS Prime B450M-K II offers excellent value for budget builds. It supports Ryzen processors, DDR4 memory, and includes two M.2 slots. While it lacks Wi-Fi and advanced features, it's reliable for basic gaming and everyday computing.

B550 supports PCIe 4.0 for faster storage and graphics cards, while B450 maxes out at PCIe 3.0. B550 also offers better power delivery for newer Ryzen processors. If you're building a budget system with older Ryzen chips, B450 is perfectly adequate.

No, all ASUS motherboards genuinely under £100 use DDR4 memory. DDR5 motherboards start around £115-180. The good news is DDR4 is significantly cheaper and still performs well for budget gaming and productivity builds.

Yes, but with limitations. The B450 and B550 chipsets support CPU and memory overclocking, though power delivery on sub-£100 boards is basic. You can achieve modest overclocks, but don't expect to push high-end Ryzen chips to their limits.

AM4 is the best choice for budget builds under £100. It supports affordable Ryzen 5000 series processors with excellent performance. AM5 motherboards with DDR5 start above £100, making them unsuitable for strict budget builds.

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  • Live prices, refreshed twice daily