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Triple-fan graphics card with a 3.5-slot metal shroud and vented backplate

ASUS

ASUS ROG Strix GeForce RTX 4090 OC 24GB graphics card

SKU CH-28W3-VEJ8M

Delivers 24 GB GDDR6X on a 384-bit bus with boost clocks to 2640 MHz, triple Axial-tech fans and a 3.5-slot vapor-chamber cooler drawing 450 W

  • InterfacePCI Express 4.0
  • Chipset ManufacturerNVIDIA
  • GPU SeriesNVIDIA GeForce RTX 40 Series
  • GPUGeForce RTX 4090
  • Game Clock2610 MHz
  • Boost Clock2640 MHz
  • Boost clock of 2640 MHz delivers high frame rates
  • 24 GB GDDR6X on 384-bit bus handles large textures
  • Axial-tech fans give 23% more airflow for cooler runs
  • 5-slot vapor-chamber design moves heat away fast
  • HDMI 2.1 and DisplayPort 1.4a drive 7680 x 4320 displays

ROG GeForce RTX 4090 OC 24GB

The ASUS ROG GeForce RTX 4090 OC Edition is a high-end graphics card built for 4K gaming and intensive creative workloads. It features the NVIDIA Ada Lovelace architecture with 24GB of GDDR6X memory on a 384-bit interface. The factory overclock pushes the boost clock to 2640 MHz for maximum frame rates. A 3.5-slot cooler with a vapor chamber and three Axial-tech fans handles the 450W thermal design power.

PCIe 4.0 x16 interface limits

The card connects through a PCI Express 4.0 x16 slot, which provides sufficient bandwidth for the GPU and 24GB memory buffer. Display outputs consist of two HDMI 2.1 ports and three DisplayPort 1.4a connectors, supporting up to four simultaneous monitors at 7680 x 4320 resolution. The single 16-pin power connector draws up to 450W, so the motherboard slot and cable routing must accommodate the high current demand.

358mm length and 1000W PSU check

Verify that your case accepts a card length of 358mm and a 3.5-slot thickness of 70.1mm before ordering. A power supply of at least 1000W is recommended to sustain the 450W TDP alongside other system components. Ensure the PSU includes a native 16-pin connector or use the supplied adapter cable with two separate 8-pin cables. Confirm physical clearance for the included graphics card holder and cable bend radius.

Points forts

  • Boost clock of 2640 MHz delivers high frame rates
  • 24 GB GDDR6X on 384-bit bus handles large textures
  • Axial-tech fans give 23% more airflow for cooler runs
  • 5-slot vapor-chamber design moves heat away fast
  • HDMI 2.1 and DisplayPort 1.4a drive 7680 x 4320 displays

Caractéristiques

BrandASUS
SeriesROG
ModelROG-STRIX-RTX4090-O24G-GAMING
InterfacePCI Express 4.0
Chipset ManufacturerNVIDIA
GPU SeriesNVIDIA GeForce RTX 40 Series
GPUGeForce RTX 4090
Game Clock2610 MHz
Boost Clock2640 MHz
Memory Interface384-Bit
Memory TypeGDDR6X
DirectXDirectX 12 Ultimate
OpenGLOpenGL 4.6
Multi-Monitor Support4
HDMI2 x HDMI 2.1
DisplayPort3 x DisplayPort 1.4a
Max Resolution7680 x 4320
Thermal Design Power450W
Recommended PSU Wattage1000W
Power Connector1 x 16-Pin
HDCP Ready2.3
Max GPU Length358 mm
Card Dimensions (L x H)357.6 x 70.1mm
Slot Width3.5 Slot
Package Contents1 x Collection Card
1 x Speedsetup Manual
1 x Adapter Cable
1 x ROG Graphics Card Holder
1 x ROG Velcro Hook & Loop
1 x Thank you Card

Questions sur cet article

What does the 24GB GDDR6X capacity mean for my build?

The 24GB GDDR6X frame buffer on a 384-bit bus feeds the RTX 4090 GPU at high bandwidth, letting you run 4K or 8K textures, large 3D scenes and AI workloads without swapping to system memory.

How does the 2640 MHz boost clock behave once the card is installed?

The 2640 MHz boost clock is the peak frequency the GPU can reach under load; actual sustained clocks depend on your case airflow, power limit and the 450W TDP thermal headroom.

What does the PCI Express 4.0 interface cap in practice?

PCI Express 4.0 x16 provides up to 32 GB/s bandwidth; the card will also run in a PCIe 3.0 slot at half that throughput, which rarely limits gaming performance at 4K.

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