ASUS ROG-STRIX-LC-RTX4090-O24G-GAMING graphics card

Liquid-cooled RTX 4090 for 4K creators

The ASUS ROG Strix LC GeForce RTX 4090 OC Edition is a liquid-cooled graphics card built on the NVIDIA Ada Lovelace architecture. It carries 24 GB of GDDR6X memory across a 384-bit bus and connects via PCI Express 4.0. Factory OC mode pushes the boost clock to 2640 MHz, while default mode runs at 2520 MHz. A 240 mm radiator with 560 mm tubing handles the 450 W thermal design power in a 2.6-slot frame.

Upgrade from air-cooled 4090 or hot-running flagship

Moving from an air-cooled RTX 4090 to this liquid model cuts peak GPU temperatures and reduces fan noise under sustained 4K or compute loads. The full-coverage cold plate cools both the GPU die and memory, while a blower-style fan and low-profile heatsink manage power-delivery components. The 16-pin power connector and 1000 W PSU recommendation remain unchanged, so the jump is worth it when thermal headroom or acoustic comfort matter more than slot count.

Suits compact high-performance builds; not for

The 293 mm card length and 2.6-slot width fit most ATX and EATX chassis, and the long tubing allows flexible radiator placement. Creators driving four displays at up to 7680 x 4320 over two HDMI 2.1 and three DisplayPort 1.4a ports gain stable clocks without thermal throttling. Builders with cases that cannot mount a 240 mm radiator or lack clearance for the pump block should consider an air-cooled alternative.