Z890 vs B860 Motherboards
Both are LGA1851 boards taking the same Intel Core Ultra processors. Z890 is the enthusiast tier: it allows processor overclocking and carries more high-speed lanes, which shows up as more usable slots and a much higher share of boards with 40 Gbps USB4 on the rear. B860 covers the same processors and the same memory for less, and still supports memory tuning.
The verdict
B860 is the better buy unless you intend to overclock the processor or want the extra connectivity. Intel's recent chips gain little from manual overclocking, so for most builds the money is better spent on the processor or graphics card than on the chipset tier.
What you give up, in numbers
How the two sizes actually differ once you look at every board on sale, rather than at what the standard permits. Measured across 60 Z890 and 61 B860 boards at the retailers we track (58 and 52 in stock today), and updated daily.
The picks on each side
The cheapest board on each side, and the cheapest one that clears a floor worth clearing: enough power headroom for the socket’s top processor, and Wi-Fi 6E or better. Recalculated daily from live prices.
Z890
B860
Best all-round
$119.99 · cheapest with the power headroom and Wi-Fi worth having
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Common questions
Can you overclock on B860?
Not the processor. B860 supports memory tuning but leaves processor overclocking to Z890. For most current Intel chips the practical gain from processor overclocking is small.
Do Z890 and B860 take the same processors?
Yes. Both use the LGA1851 socket and take the same Intel Core Ultra processors.
Is Z890 worth it over B860?
If you want to overclock the processor, or you want the extra high-speed lanes and the USB4 connectivity that more Z890 boards carry, then yes. For a straightforward gaming build, B860 covers the same ground for less.
Keep going
Browse every Z890 board or B860 board with filters, put two specific boards head to head, or read up on choosing a case to fit the board you pick.