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Black graphics card with four fans and angular metal shroud

ASUS

ASUS ROG-ASTRAL-RTX5090-O32G-GAMING 32 GB GDDR7 graphics card

SKU CH-H216-FKAHM MPN ROG-ASTRAL-RTX5090-O32G-GAMING

GeForce RTX 5090 graphics card with 32 GB GDDR7 memory, 21760 CUDA cores, PCIe 5.0, HDMI 2.1b and DisplayPort 2.1a for 7680×4320 gaming

  • Graphics processorGeForce RTX 5090
  • Memory capacity32 GB
  • Interface typePCI Express 5.0
  • CUDA core count21760
  • Highest resolution7680 × 4320
  • Boost frequencyOC mode: 2610 MHz Default mode: 2580 MHz(Boost clock)

Edition ROG ASTRAL OC

  • 32 GB GDDR7 memory drives 4K and 8K workloads
  • 21760 CUDA cores accelerate rendering and AI tasks
  • PCI Express 5.0 interface doubles bandwidth versus earlier versions
  • DLSS 4.0 upscaling boosts frame rates with ray tracing
  • HDMI 2.1b and DisplayPort 2.1a outputs support 7680 x 4320 resolution

32 GB GDDR7 graphics card

The ASUS ROG Astral GeForce RTX 5090 OC Edition is a high-end graphics card built for 4K gaming and professional creative workloads. It features 21760 CUDA cores and 32 GB of GDDR7 memory running across a 512-bit interface. The boost clock reaches 2610 MHz in OC mode and 2580 MHz in default mode. This card targets enthusiasts who need maximum frame rates and memory capacity.

PCI Express 5.0 interface limits

The card connects through a PCI Express 5.0 slot, which provides the bandwidth ceiling for the GPU and its 28 Gbps memory. Display outputs are limited to two native HDMI 2.1b ports and three native DisplayPort 2.1a ports, supporting up to four simultaneous monitors. The maximum digital resolution is 7680 x 4320. SLI multi-GPU configurations are not supported on this model.

Black finish and connector layout

The black shroud houses a triple-slot cooling assembly that occupies significant case space and requires a robust power supply. Two HDMI 2.1b and three DisplayPort 2.1a connectors sit along the rear bracket, allowing flexible multi-monitor arrangements without adapters. The 512-bit memory bus and GDDR7 modules demand careful airflow management to sustain the 28000 MHz effective clock during extended sessions.

How it compares

Measured against everything we stock in Desktop GPUs & Video Cards, at today’s prices. Recalculated every night.

Price $3,839.99
Pricier than about 93% of the 4,285 comparable items (median $354.99).
Memory capacity 32 GB
Higher than about 93% of the 3,563 comparable items (median 8 GB).
Boost frequency OC mode: 2610 MHz Default mode: 2580 MHz(Boost clock)
Higher than about 80% of the 1,837 comparable items (median 1.89 GHz).

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Specifications

Product
Brand nameASUS
Product lineROG Astral
Model nameROG-ASTRAL-RTX5090-O32G-GAMING
Product colorBlack
Processor
TDP rating575 W
Memory
Type of memoryGDDR7
Display
Highest resolution7680 × 4320
Graphics
Graphics processorGeForce RTX 5090
Memory capacity32 GB
Boost frequencyOC mode: 2610 MHz
Default mode: 2580 MHz(Boost clock)
CUDA core count21760
Chipset makerNVIDIA
Graphics seriesNVIDIA GeForce RTX 50 Series
Effective memory speed28000 MHz (28 Gbit/s)
Memory bus width512-Bit
OpenGL support4.6
Supported displays4
Multi-GPU supportNo
VR readyYes
Audio & video
HDCP supportYes
Ports & slots
Interface typePCI Express 5.0
HDMI ports2 x (Native)HDMI 2.1b
DisplayPort connectors3 x (Native)DisplayPort 2.1a
Power
Recommended power supply1000 W
Power input connector1 × 16-Pin
Size & build
Form factorATX
Max graphics card length357.6 mm
Card size14.1 × 5.9 × 3 in
Slots occupied3.8 Slots
Shipping weight4.54 kg
Package size432 × 229 × 127 mm
More details
Cooling solutionTriple Fans

Other versions of this model

1 more in the same range

Questions about this item

Should I pick the OC mode or the default mode for the RTX 5090 32 GB GDDR7 card?

OC mode runs the boost clock at 2610 MHz while default mode runs at 2580 MHz; both use the same 21760 CUDA cores and 32 GB GDDR7 memory, so choose OC mode if you want the factory-overclocked speed.

What does the 28000 MHz effective memory clock deliver in a real system?

The 28 Gbps GDDR7 memory across a 512-bit bus feeds the 21760 CUDA cores with very high bandwidth, letting the RTX 5090 GPU handle 4K and 8K workloads with large texture sets.

How does the PCI Express 5.0 interface cap performance in practice?

The card uses a PCI Express 5.0 slot for maximum host bandwidth; actual throughput will depend on your motherboard and CPU support for the same generation.

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