https://www.techpowerup.com/307298/noctua-cools-down-700-w-56-core-intel-xeon-w9-3495x-on-air Noctua has showcased its NH-U14S DX-4677 air cooler in action, cooling down Intel's 56-core Xeon W9-3495X at full load and drawing 700 W of power. While all-in-one (AiO) liquid coolers are popular these days, Noctua aim to show that air coolers are more than capable on handling even the most high-end CPUs, even at continuous load and without throttling.
While the video does not show the full details of the CPU settings, it is still an impressive feat, especially considering the high power draw, which suggest that the CPU was pushed way beyond its default settings for demonstration. The setup includes the aforementioned Intel's 56-core Xeon W9-3495X CPU, running on ASUS Pro WS W790E-SAGE SE motherboard with SK Hynix DDR5 EC8 RDIMM, and powered by Seasonic's PX-1600 PSU.
Bear in mind that the Noctua NH-U14S DX-4677 is a hefty CPU air cooler with large copper base, eight copper heatpipes, and large aluminium heatsink. It is designed specifically for Intel's LGA4677 socket Xeon CPUs, and it weighs 1136 g with fans. It comes with two Noctua NF-A15 HS-PWM fans spinning from 300 to 1500 RPM and providing 140,2 m³/h of airflow at 24,6 dB of noise.
For air cooling this is quite an impressive feat.