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ASUS ROG Strix LC NVIDIA GeForce RTX 3090 Ti OC Edition Gaming Graphics Card (PCIe 4.0, 24GB GDDR6X, HDMI 2.1, DisplayPort 1.4a, Full-Coverage Cold Plate, 240mm Radiator, 600mm tubing, GPU Tweak)

ASUS ROG Strix LC NVIDIA GeForce RTX 3090 Ti OC Edition Gaming Graphics Card

Bottom line: The ASUS ROG Strix LC NVIDIA GeForce RTX 3090 Ti OC Edition Gaming ($2,665.00 on Amazon as of 2026-10-21 04:14 UTC): Full-coverage cold plate liquid-cools both GPU die and GDDR6X memory, not just the die; main trade-off: 240mm radiator needs a free front or top mount, ruling out compact cases.

$2665.00

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Buy on Amazon — $2,665.00 Compare to similar graphics cards

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ Full-coverage cold plate liquid-cools both GPU die and GDDR6X memory, not just the die
  • ✓ 24GB GDDR6X handles 8K textures, large LLM weights, and heavy 3D scenes
  • ✓ 600mm tubing fits EATX chassis and alternative radiator mounts
  • ✓ 2nd-gen RT cores run ray tracing and shading concurrently for higher RT frame rates
  • ✓ 3rd-gen Tensor cores enable DLSS upscaling at up to 8K resolution

Cons

  • ✗ 240mm radiator needs a free front or top mount, ruling out compact cases
  • ✗ Blower fan on the power-delivery heatsink adds noise the liquid loop cannot remove
  • ✗ AIO pump and tubing are sealed, so no servicing or loop expansion later
  • ✗ Ampere generation, so no DLSS frame-generation features found on newer cards

Manufacturer description

The mind-blowing performance of the NVIDIA Ampere architecture just got cooler. The ROG Strix LC GeForce RTX™ 3090 Ti channels the power of liquid cooling to unlock the GPU’s full potential and then some, delivering ultra-quiet thermal performance that blows air-cooled designs out of the water.

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SpecPicks Verdict

SpecPicks scored ASUS ROG Strix LC NVIDIA GeForce RTX 3090 Ti OC Edition Gaming… using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the graphics cards category. Compare with similarly-priced alternatives in the graphics cards category before committing. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for graphics cards of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • NVIDIA Ampere Streaming Multiprocessors: The building blocks for the world’s fastest, most efficient GPU, the all-new Ampere SM brings 2X the FP32 throughput and improved power efficiency.
  • 2nd Generation RT Cores: Experience 2X the throughput of 1st gen RT Cores, plus concurrent RT and shading for a whole new level of ray tracing performance.
  • 3rd Generation Tensor Cores: Get up to 2X the throughput with structural sparsity and advanced AI algorithms such as DLSS. Now with support for up to 8K resolution, these cores deliver a massive boost in game performance and all-new AI capabilities.
  • Full-coverage cold plate brings liquid cooling to GPU die and memoryAvoid using unofficial software
  • On-board cooling for power-delivery is handled by a blower-style fan and low-profile heatsink.
  • 240mm radiator balances compatibility and performance.

Full Specifications

BrandASUS
Model NameRTX3090
Model NumberROG-STRIX-LC-RTX3090TI-O24G-GAMING
Built-In MediaROG-STRIX-LC-RTX3090TI-O24G-GAMING
Number of Fans1
Mfr Part NumberROG-STRIX-LC-RTX3090TI-O24G-GAMING
Video ProcessorNVIDIA
Antenna LocationGaming
Graphics Card Ram24 GB
Graphics Ram Size24 GB
Graphics Ram TypeGDDR6X
Compatible DevicesDesktop
Memory Clock Speed4000
Graphics CoprocessorNVIDIA GeForce RTX 3090 Ti
Graphics DescriptionNVIDIA GeForce RTX 3090 Ti
Warranty Description3 years
Item Dimensions L x W16.7"L x 10.1"W
Video Output InterfaceDisplayPort, HDMI
2nd Generation RT CoresExperience 2X the throughput of 1st gen RT Cores, plus concurrent RT and shading for a whole new level of ray tracing performance.
Graphics Card InterfacePCI-Express x16
Full listing titleASUS ROG Strix LC NVIDIA GeForce RTX 3090 Ti OC Edition Gaming Graphics Card (PCIe 4.0, 24GB GDDR6X, HDMI 2.1, DisplayPort 1.4a, Full-Coverage Cold Plate, 240mm Radiator, 600mm tubing, GPU Tweak)

Performance Data

View gaming FPS, AI inference throughput, and synthetic scores for the NVIDIA GeForce RTX 3090 Ti — the core hardware component in this product. Benchmarks sourced from TechPowerUp, PassMark, and the r/LocalLLaMA community.

Which local LLMs fit in 24 GB?

24 GB holds a 30–35B model at Q4 entirely in VRAM — the step where 27B-class models stop spilling to system RAM.

  • ✅ 7–9B models (Llama 3.1 8B, Qwen 3 8B) — fits at Q4
  • ✅ 12–14B models (Qwen 3 14B, Phi-4) — fits at Q4
  • ✅ 20–27B models (Gemma 3 27B, Mistral Small) — fits at Q4
  • ✅ 30–35B models (Qwen 3 32B, QwQ 32B) — fits at Q4
  • ❌ 70B models (Llama 3.3 70B, Qwen 2.5 72B) — needs 48 GB+

Across 9 community runs from 6 sources, the NVIDIA GeForce RTX 3090 Ti generates a median 110 tok/s on 7–9B models at Q4 (per Hardware Corner).

Per-model VRAM guide: which GPU for which LLM →

Ready to buy?

ASUS ROG Strix LC NVIDIA GeForce RTX 3090 Ti OC Edition Gaming Graphics Card (PCIe 4.0, 24GB GDDR6X, HDMI 2.1, DisplayPort 1.4a, Full-Coverage Cold Plate, 240mm Radiator, 600mm tubing, GPU Tweak) is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $2,665.00

*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.

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ASUS ROG Strix LC NVIDIA GeForce RTX 3090 Ti OC Edition Gaming Graphics Card (PCIe 4.0, 24GB GDDR6X, HDMI 2.1, DisplayPort 1.4a, Full-Coverage Cold Plate, 240mm Radiator, 600mm tubing, GPU Tweak)
$2,665.00
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