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Black graphics card with integrated liquid cooling block, 240mm radiator and tubing, metal shroud, backplate visible

ASUS Refurbished

ASUS ROG-STRIX-LC-RTX3090TI-O24G-GAMING graphics card

SKU CH-GMPV-N548D MPN ROG-STRIX-LC-RTX3090TI-O24G-GAMING

Liquid-cooled RTX 3090 Ti with 24 GB GDDR6X, 10752 CUDA cores and 21 Gbps memory on a 384-bit bus

  • Graphics processorGeForce RTX 3090 Ti
  • Memory capacity24 GB
  • Interface typePCI Express 4.0
  • CUDA core count10752
  • Highest resolution7680 × 4320
  • Boost frequency1980 MHz (OC mode) 1950 MHz (Gaming mode)
  • Hybrid liquid cooling covers GPU die and memory for lower temperatures
  • 240 mm radiator with 560 mm tubing fits EATX cases and alternative mounts
  • 24 GB GDDR6X on a 384-bit bus at 21 Gbps feeds 10752 CUDA cores
  • Boost clocks of 1980 MHz OC and 1950 MHz Gaming mode via PCIe 4.0
  • Two HDMI 2.1 and three DisplayPort 1.4a drive four displays up to 7680 x 4320

Liquid-cooled RTX 3090 Ti for 4K creators

This ROG STRIX card pairs a factory-overclocked GeForce RTX 3090 Ti GPU with a 240 mm hybrid cooler, delivering 24 GB of GDDR6X memory on a 384-bit bus for 4K gaming and GPU-accelerated workloads. The PCIe 4.0 interface and 10752 CUDA cores provide the throughput needed for high-resolution rendering and AI-assisted content pipelines.

Upgrade from air-cooled 3090 when thermals limit

Moving from a standard air-cooled RTX 3090 or earlier flagship becomes worthwhile when sustained boost clocks throttle under load, as the full-coverage cold plate and 560 mm tubing keep the GPU die and memory at lower temperatures. The 1980 MHz OC boost and 21 Gbps memory speed are maintained more consistently, reducing frame-time variance in long sessions.

Suits 4K enthusiasts with 1000 W PSU and EATX space

Builders running a 1000 W supply with a 16-pin connector and an EATX chassis that fits a 240 mm radiator will gain quiet, high-frequency operation for 7680 x 4320 output across four displays. Compact cases without radiator clearance or systems below the recommended power budget should consider air-cooled alternatives instead.

How it compares

Measured against everything we stock in Desktop GPUs & Video Cards, at today’s prices. Recalculated every night.

Price $788.99
Pricier than about 81% of the 4,285 comparable items (median $354.99).
Memory capacity 24 GB
Higher than about 91% of the 3,563 comparable items (median 8 GB).
Boost frequency 1980 MHz (OC mode) 1950 MHz (Gaming mode)
Typical for this category: the median of 1,837 items is 1.89 GHz.

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Specifications

Product
Brand nameASUS
Product lineROG STRIX
Model nameROG-STRIX-LC-RTX3090TI-O24G-GAMING
Processor
TDP rating450 W
Memory
Type of memoryGDDR6X
Display
Highest resolution7680 × 4320
Graphics
Graphics processorGeForce RTX 3090 Ti
Memory capacity24 GB
Boost frequency1980 MHz (OC mode)
1950 MHz (Gaming mode)
CUDA core count10752
Chipset makerNVIDIA
Graphics seriesNVIDIA GeForce RTX 30 Series
GPU architectureAmpere
Effective memory speed21 Gbit/s
Memory bus width384-Bit
Supported displays4
Multi-GPU supportSLI Ready
Audio & video
HDCP support2.3
Ports & slots
Interface typePCI Express 4.0
HDMI ports2 x HDMI 2.1
DisplayPort connectors3 x DisplayPort 1.4a
Power
Recommended power supply1000 W
Power input connector1 × 16-Pin
Size & build
Max graphics card length293 mm
Card sizeCard: 11.54 in × 5.24 in
Radiator: 10.71 in × 4.76 in
Slots occupied2.6 Slot
Shipping weight4.35 kg
Package size476 × 323 × 226 mm
More details
Cooling solutionHybrid Cooler

Questions about this item

Will the 293 mm card and 240 mm radiator fit in my EATX chassis?

The card measures 293 mm long and occupies 2.6 slots. The 240 mm radiator is 10.71 x 4.76 inches, and 560 mm tubing allows flexible placement in EATX cases.

How do I install the hybrid cooler without bending the 560 mm tubing?

Mount the radiator and fans first, then lower the cold-plate onto the GPU die and memory. Route the 560 mm tubes with gentle curves — sharp kinks restrict flow and are the most common error.

When should I plan to replace the liquid-cooling loop on this 450 W card?

A sealed 240 mm loop typically runs 3–5 years before coolant degradation or pump wear. Monitor GPU temperatures under 450 W load; rising deltas signal replacement time.

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