Skip to main content

Noctua NH-L9a-AM4 vs Noctua NH-U12S Redux — Head-to-Head (2026)

Side-by-side comparison. Specs, prices, user ratings, and our verdict.

vs
Noctua NH-U12S Redux, Quiet High-Performance Single Tower CPU Cooler | 158mm Height, Low-Noise Cooling, 5 Heatpipes, For Intel & AMD, 120mm Fan, 100% RAM Compatibility

Noctua NH-U12S Redux, Quiet High-Performance Single Tower CPU Cooler | 158mm Height, Low-Noise Cooling, 5 Heatpipes, For Intel & AMD, 120mm Fan, 100% RAM Compatibility

$59.95
🛒 Check Price on Amazon

*Price sourced from Amazon.com. Price and availability subject to change.

Spec-by-spec

SpecNoctua NH-L9a-AM4, Premium Low-Profile…Noctua NH-U12S Redux, Quiet High-Perfor…
BrandNoctuaNoctua
ModelNH-L9a-AM4NH-U12Sredux
Weight4750g—
Voltage12 volts12 volts
MaterialCopper (base and heat-pipes), aluminium (cooling fins), soldered joints & nickel platingNickel plated Copper (base and heat-pipes), aluminium (cooling fins)
Unit Count1 Count1 Count
Noise Level23.6 db25.1 db
Part NumberNH-L9a-AM4NH-U12Sredux
Material TypeCopper (base and heat-pipes), aluminium (cooling fins), soldered joints & nickel platingNickel plated Copper (base and heat-pipes), aluminium (cooling fins)
Cooling MethodAirAir
Item Type NameCooler—
Number of Items11
Air Flow Capacity57.5 cubic meter per hour—
Compatible DevicesDesktopDesktop

Keep researching

Already narrowing? Open each product page for the full spec sheet, FAQ, and live Amazon price: Noctua NH-L9a-AM4, Premium Low-Profile… · Noctua NH-U12S Redux, Quiet High-Perfor…. Browse the full CPU Coolers & Fans catalog or read our CPU Coolers & Fans buying guide for tier picks. You can also compare up to four products side-by-side, jump to all categories, or check the benchmarks index for hardware-only matchups.

More guides & deep dives from the SpecPicks archive

Browse all articles & guides →

More reviews from the SpecPicks archive

Browse all reviews →