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White triple-fan graphics card with silver accents and backplate

ASUS

ASUS STRIX3090-O24G-WHITE graphics card

SKU CH-765V-Z5EFN MPN STRIX3090-O24G-WHITE

Refurbished GeForce RTX 3090 graphics card with 24GB GDDR6X memory, 10496 CUDA cores, triple-fan cooling and white finish

  • InterfacePCI Express 4.0
  • Chipset ManufacturerNVIDIA
  • GPU SeriesNVIDIA GeForce RTX 30 Series
  • GPUGeForce RTX 3090
  • Core Clock1890 MHz
  • Boost ClockOC Mode - 1890 MHz Gaming Mode - 1860 MHz
  • 24 GB GDDR6X on a 384-bit bus feeds 10496 CUDA cores for heavy compute
  • OC boost clock reaches 1890 MHz for high single-thread speed
  • PCIe 4.0 interface removes bandwidth bottlenecks on modern platforms
  • Two HDMI 2.1 and three DisplayPort 1.4a outputs drive four 8K displays
  • Triple-fan cooler sustains 850 W TDP with a 750 W PSU recommendation

Product identity

The ASUS ROG Strix GeForce RTX 3090 in white delivers 24GB of GDDR6X memory on a 384-bit bus with 10496 CUDA cores. It targets creators and researchers who need large frame buffers for 3D rendering, video editing or AI workloads.

Who should buy and who should pass

This card suits professionals who regularly exceed 12GB VRAM limits and can provide a 750W power supply with three 8-pin connectors. Gamers focused only on 1440p or 4K raster performance should look at smaller, cooler and cheaper alternatives.

Deciding specification

The 24GB GDDR6X frame buffer combined with a 384-bit memory interface is the single specification that decides fit. If your workload saturates 12GB buffers, this capacity and bandwidth combination justifies the power and thermal demands.

Highlights

  • 24 GB GDDR6X on a 384-bit bus feeds 10496 CUDA cores for heavy compute
  • OC boost clock reaches 1890 MHz for high single-thread speed
  • PCIe 4.0 interface removes bandwidth bottlenecks on modern platforms
  • Two HDMI 2.1 and three DisplayPort 1.4a outputs drive four 8K displays
  • Triple-fan cooler sustains 850 W TDP with a 750 W PSU recommendation

Specifications

BrandASUS
SeriesROG Strix
ModelROG-STRIX-RTX3090-O24G-WHITE
InterfacePCI Express 4.0
Chipset ManufacturerNVIDIA
GPU SeriesNVIDIA GeForce RTX 30 Series
GPUGeForce RTX 3090
Core Clock1890 MHz
Boost ClockOC Mode - 1890 MHz
Gaming Mode - 1860 MHz
CUDA Cores10496
Effective Memory Clock19.5 Gbps
Memory Size24GB
Memory Interface384-Bit
Memory TypeGDDR6X
DirectXDirectX 12
OpenGLOpenGL 4.6
Multi-Monitor Support4
HDMI2 x HDMI 2.1
DisplayPort3 x DisplayPort 1.4a
ColorWhite
Max Resolution7680 x 4320
SLI SupportSLI Ready
CoolerTriple Fans
Thermal Design Power850W
System RequirementsRecommended PSU: 750W
Recommended PSU Wattage750W
Power Connector3 x 8-Pin
HDCP Ready2.3
FeaturesNVIDIA 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 capabilit
Max GPU Length319 mm
Card Dimensions (L x H)12.53" x 5.51"
Slot Width2.9 Slot
Shipping weight2.68 kg
Package size406 × 234 × 89 mm

Questions about this item

What case clearance and power supply capacity does the triple-fan RTX 3090 with 384-bit GDDR6X require?

The card occupies a 3-slot footprint and needs a chassis that can fit a 3-fan cooler; the maker recommends a 750 W PSU to support the 850 W thermal design power.

How do I connect the three 8-pin power cables on this PCI Express 4.0 board without missing a connector?

Plug all three 8-pin cables from the power supply into the card before tightening the rear bracket; each connector must seat fully or the GPU will not start.

When should I plan to renew the thermal interface on the GeForce RTX 3090 with 10496 CUDA cores?

Refresh the paste every couple of years or if core temperatures climb noticeably above the 1860 MHz gaming-mode baseline under load.

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