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Black graphics card with integrated pump block and two thick tubes running to a 240mm radiator with dual fans

ASUS

ASUS ROG Strix LC GeForce RTX 3090 Ti 24GB graphics card

SKU CH-CJTV-2393G

Liquid-cooled graphics card with 24 GB GDDR6X, 10752 CUDA cores, 240 mm radiator, PCIe 4.0, HDMI 2.1 and DisplayPort 1.4a for 8K output

  • InterfacePCI Express 4.0 x16
  • Chipset ManufacturerNVIDIA
  • GPU SeriesNVIDIA GeForce RTX 30 Series
  • GPUGeForce RTX 3090 Ti
  • Core Clock1890 MHz (OC), 1860 MHz (Gaming)
  • Boost Clock1860 MHz
  • Liquid cooling covers GPU die and memory for lower temperatures
  • 24 GB GDDR6X memory at 21 Gbps enables 8K HDR gaming
  • 10,752 CUDA cores deliver high compute throughput for rendering and AI
  • PCI Express 4.0 x16 interface provides full bandwidth to the platform
  • 240 mm radiator with 560 mm tubing fits standard chassis layouts

Liquid-cooled RTX 3090 Ti for 4K and 8K creators

The ASUS ROG Strix LC GeForce RTX 3090 Ti 24GB graphics card targets enthusiasts who need maximum frame rates at 7680 x 4320 resolution. Its NVIDIA Ampere GPU delivers 10752 CUDA cores with a 1890 MHz OC boost clock and 24GB of GDDR6X memory across a 384-bit bus. PCI Express 4.0 x16 bandwidth feeds the 21 Gbps memory speed for demanding creative workloads and high-refresh gaming.

240mm radiator handles GPU and memory heat

A full-coverage cold plate transfers heat from the die and GDDR6X modules into a 272 x 121 x 54 mm radiator served by 560mm tubing. On-board power delivery uses a blower-style fan and low-profile heatsinks to keep VRM temperatures in check. The 2.6-slot card profile fits standard ATX layouts while the liquid loop moves thermal load outside the chassis for quieter operation under sustained loads.

Single 16-pin power connector and 1000W PSU minimum

Installation requires a 1000W or greater power supply with one 16-pin connector to feed the 3090 Ti. The 293 x 133 x 52 mm card occupies 2.6 slots and leaves the remaining PCIe slots accessible for capture cards or storage. Two HDMI 2.1 and three DisplayPort 1.4a outputs drive up to four 8K displays simultaneously with ARGB lighting sync via AURA.

Highlights

  • Liquid cooling covers GPU die and memory for lower temperatures
  • 24 GB GDDR6X memory at 21 Gbps enables 8K HDR gaming
  • 10,752 CUDA cores deliver high compute throughput for rendering and AI
  • PCI Express 4.0 x16 interface provides full bandwidth to the platform
  • 240 mm radiator with 560 mm tubing fits standard chassis layouts

Specifications

BrandASUS
ModelROG-STRIX-LC-RTX3090TI-24G-GAMING
InterfacePCI Express 4.0 x16
Chipset ManufacturerNVIDIA
GPU SeriesNVIDIA GeForce RTX 30 Series
GPUGeForce RTX 3090 Ti
Core Clock1890 MHz (OC), 1860 MHz (Gaming)
Boost Clock1860 MHz
CUDA Cores10752
Memory Size24GB
Memory Interface384-Bit
Memory TypeGDDR6X
DirectXDirectX 12 Ultimate
OpenGLOpenGL®4.6
Multi-Monitor Support4
HDMI2 X Native HDMI 2.1
DisplayPort3 X Native DisplayPort 1.4a
Max Resolution7680 x 4320
Virtual Reality ReadyYes
CoolerLiquid Cooler
Thermal Design Power450W
Recommended PSU Wattage1000W
Form FactorATX
Max GPU Length293 mm
Slot Width3 Slots

Questions about this item

How do I install the 240mm radiator and 560mm tubing, and what step do people get wrong?

Mount the 240mm radiator where your case supports a 272 x 121 x 54 mm unit, route the 560mm tubes without sharp bends, then secure the 293 x 133 x 52 mm card in a 2.6-slot space; the common error is twisting the tubing so the cold plate loses contact with the GPU die and memory.

What maintenance or replacement will the liquid cooler need later?

The sealed 240mm loop is maintenance-free; only the blower-style fan on the power-delivery heatsink may need dust clearing or eventual replacement if bearing noise appears.

What limit shows up first under sustained load?

The 1000W PSU requirement and single 16-pin connector set the power ceiling; if the 1860 MHz boost clock cannot be held, the card will throttle before the liquid loop saturates.

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