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ASUS ROG Strix RTX 4090 BTF OC graphics card, three-slot dark cooler with triple axial fans and metal backplate

ASUS

ASUS ROG Strix RTX 4090 BTF OC graphics card

SKU CH-0NBY-1W2EP

Factory-refurbished RTX 4090 with 24 GB GDDR6X, 2.52 GHz boost, 450 W TGP and three DisplayPort 1.4 plus HDMI 2.1 outputs

  • Chipset ManufacturerNVIDIA
  • GPUNVIDIA RTX 4090
  • Memory Size24GB GDDR6X
  • Memory TypeGDDR6X
  • Manufacturer-refurbished and tested by ASUS for full functionality
  • 24 GB GDDR6X memory handles 8K workloads at 4320p
  • Boost clock reaches 2.52 GHz for high frame rates
  • PCI Express 4.0 x16 slot with 450 W graphics power
  • DLSS 3 rendering plus ray tracing on RTX 4090 GPU

Refurbished RTX 4090 for high-end builds

This ASUS ROG Strix RTX 4090 BTF OC is a manufacturer-refurbished graphics card with 24 GB GDDR6X memory. ASUS has tested the unit and confirms full functionality, though slight cosmetic wear may be present. It ships in plain packaging and connects via a PCI Express 4.0 x16 slot. The card targets enthusiasts who want flagship rasterisation and AI performance without buying new.

Thermals and power at stock settings

The triple-slot cooler uses fans and a heatsink to manage a 450 W total graphics power rating. At the 2.23 GHz base clock and 1.31 GHz VRAM clock the card runs within its thermal envelope while driving up to four displays through three DisplayPort 1.4 outputs and one HDMI 2.1 port. ASUS recommends an 850 W power supply for stable operation.

Behaviour under sustained load

When the GPU boosts to 2.52 GHz during extended gaming or rendering sessions, the cooling assembly continues to dissipate heat without throttling the 24 GB frame buffer. DLSS 3 frame generation and ray tracing workloads remain consistent because the power delivery and memory bandwidth are unchanged from a new unit. Buyers who need a warranty longer than the refurbished term or who require pristine aesthetics should consider other options.

Highlights

  • Manufacturer-refurbished and tested by ASUS for full functionality
  • 24 GB GDDR6X memory handles 8K workloads at 4320p
  • Boost clock reaches 2.52 GHz for high frame rates
  • PCI Express 4.0 x16 slot with 450 W graphics power
  • DLSS 3 rendering plus ray tracing on RTX 4090 GPU

Specifications

BrandASUS
ModelNVIDIA RTX 4090
Chipset ManufacturerNVIDIA
GPUNVIDIA RTX 4090
Memory Size24GB GDDR6X
Memory TypeGDDR6X

Questions about this item

How do I install the ASUS ROG Strix RTX 4090 BTF OC into a PCI Express 4.0 x16 slot, and what step do people often miss?

Align the card with the PCI Express 4.0 x16 slot, press firmly until the retention clip clicks, then connect the required power cables to the graphics card; the step often missed is ensuring the power connectors are fully seated before closing the case.

What maintenance will the 24GB GDDR6X memory and cooling system need later?

The fan and heatsink cooling assembly should be cleaned of dust every few months using compressed air; the 24GB GDDR6X memory itself requires no user maintenance.

At what power limit does the card hit its ceiling during sustained loads?

The Total Graphics Power is rated at 450 watts, so the 850 watt recommended PSU ceiling is reached first under heavy sustained use.

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