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Triple-fan graphics card with vented diecast shroud and backplate

ASUS

ASUS ROG Strix GeForce RTX 4090 OC Edition graphics card

SKU CH-RCH0-S8G7T

Delivers 24 GB GDDR6X on a 384-bit bus with triple Axial-tech fans and a 3.5-slot vapor-chamber cooler for 4K and 8K gaming

  • InterfacePCI Express 4.0
  • Chipset ManufacturerNVIDIA
  • GPU SeriesNVIDIA GeForce RTX 40 Series
  • GPUGeForce RTX 4090
  • Game Clock2610 MHz
  • Boost Clock2640 MHz
  • 24 GB GDDR6X memory handles 8K textures and heavy workloads
  • Triple Axial-tech fans deliver 23 % more airflow for cooler operation
  • Patented vapor chamber with milled heatspreader lowers GPU temperatures under load
  • 5-slot design with massive fin array maximises heat dissipation
  • Factory overclocked to 2640 MHz boost clock for higher frame rates

ASUS ROG Strix RTX 4090 OC 24GB

The ASUS ROG Strix GeForce RTX 4090 OC Edition is a graphics card built for 4K gaming and professional creative workloads. It uses the NVIDIA Ada Lovelace architecture with 24GB of GDDR6X memory on a 384-bit interface. The card connects via PCI Express 4.0 and offers two HDMI 2.1 ports plus three DisplayPort 1.4a outputs for multi-monitor setups.

Triple-fan vapor-chamber cooling under load

A patented vapor chamber with a milled heatspreader sits beneath three scaled-up Axial-tech fans that deliver 23% more airflow. The 3.5-slot frame holds a massive fin array, while a diecast shroud, frame and vented backplate add rigidity and exhaust paths. Digital power control with high-current stages and 15K capacitors sustains the 2640 MHz boost clock during extended sessions.

24GB GDDR6X decides fit for 4K and AI

The 24GB GDDR6X buffer is the single specification that determines whether this card fits a build targeting 7680 x 4320 resolution, large texture datasets or heavy AI inference. With 384-bit bandwidth and DirectX 12 Ultimate support, it removes VRAM capacity as a bottleneck for those workloads.

Highlights

  • 24 GB GDDR6X memory handles 8K textures and heavy workloads
  • Triple Axial-tech fans deliver 23 % more airflow for cooler operation
  • Patented vapor chamber with milled heatspreader lowers GPU temperatures under load
  • 5-slot design with massive fin array maximises heat dissipation
  • Factory overclocked to 2640 MHz boost clock for higher frame rates

Specifications

BrandASUS
SeriesROG
ModelROG-STRIX-RTX4090-O24G-GAMING
Part Number90YV0ID0-M0AA00
InterfacePCI Express 4.0
Chipset ManufacturerNVIDIA
GPU SeriesNVIDIA GeForce RTX 40 Series
GPUGeForce RTX 4090
Game Clock2610 MHz
Boost Clock2640 MHz
Memory Size24GB
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
CoolerTriple Fans
Thermal Design Power450W
Recommended PSU Wattage1000W
Power Connector1 x 16-Pin
HDCP Ready2.3
Form FactorATX
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 about this item

How loud and hot does the ROG Strix RTX 4090 get with its 3.5-slot triple-fan cooler running all day?

The card uses a patented vapor chamber with a milled heatspreader and three scaled-up Axial-tech fans delivering 23% more airflow, while a diecast shroud, frame and vented backplate maximise heat dissipation for lower GPU temperatures under sustained load.

What power connectors and PSU capacity must I already own for this 4090 to work?

Digital power control with high-current power stages and 15K capacitors demands a robust supply; you will need a PSU with native 12VHPWR or multiple 8-pin PCIe connectors rated for the card's full power draw.

Will the HDMI 2.1 and DisplayPort 1.4a outputs drive my existing 4K monitors at their native refresh rates?

Two HDMI 2.1 and three DisplayPort 1.4a ports support up to 7680 x 4320 resolution across four displays, so 4K high-refresh panels connect directly without adapters.

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