ASUS ROG Astral OC GeForce RTX 5090
Expert rating9 / 10
- GPU Brand:
- NVIDIA
- Series:
- GeForce RTX 50
- Board Partner:
- ASUS
- VRAM:
- 32 GB
- Memory Type:
- GDDR7
- Boost Clock:
- 2610 MHz
- Card Length:
- 358 mm
- Power Connector:
- 1x 12V-2x6
- Recommended PSU:
- 1000 W
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Manufacturer: NVIDIA Last updated: 2026-09-12
ASUS ROG Astral OC GeForce RTX 5090 Review
ASUS ROG Astral OC GeForce RTX 5090 is a flagship NVIDIA graphics card built on the Blackwell (GB202) architecture, with 32GB of GDDR7 memory, a 2610MHz boost clock, and a 575W TDP. It is the largest consumer Blackwell die NVIDIA makes, a 4K/5K flagship built around DLSS 4 multi-frame generation.
If you're shopping for a flagship card, the ASUS ROG Astral OC GeForce RTX 5090 lines up against AMD's Radeon RX 7900 XTX in this catalog. Expect a card around 358mm long needing a 3.8-slot opening in your case, with cuda cores count of 21760 feeding its rendering pipeline. Launch MSRP was $1,999, though street pricing has moved since.
Performance and Architecture
Built on NVIDIA's Blackwell (GB202) architecture, the ASUS ROG Astral OC GeForce RTX 5090 pairs 21760 cuda cores with 32GB of GDDR7 memory on what ASUS rates as a 2610MHz boost clock. That combination places it in the flagship tier, where it's tuned for a specific resolution and refresh-rate target rather than being a universal do-everything card.
Power, Size, and Compatibility
At a 575W TDP, the ASUS ROG Astral OC GeForce RTX 5090 needs a power supply with enough headroom on the 12V rail plus whatever PCIe power connectors this variant uses. Physically it runs about 358mm long and occupies a 3.8-slot opening, so measure your case's GPU clearance and front intake fans before buying, especially in compact builds.
Comparison to Alternatives
The closest rival to the ASUS ROG Astral OC GeForce RTX 5090 in this catalog is AMD's Radeon RX 7900 XTX, which competes at a similar price and resolution target. Shoppers who need more VRAM headroom or lower power draw than the ASUS ROG Astral OC GeForce RTX 5090 offers should cross-shop that card before deciding, since the two trade blows depending on the game engine and whether ray tracing or upscaling is in use.
Specifications
Platform
| GPU Brand | NVIDIA |
|---|---|
| Board Partner | ASUS |
Identity and type
| Product Type | Desktop Add-In Card |
|---|---|
| Series | GeForce RTX 50 |
| Tier | Flagship |
Performance
| VRAM | 32 GB |
|---|---|
| Memory Type | GDDR7 |
| Boost Clock | 2610 MHz |
| Ray Tracing Support | Yes |
Physical & Power
| Card Length | 358 mm |
|---|
Board and vendor
| Factory Overclocked | Yes |
|---|
Silicon
| Architecture | Blackwell |
|---|---|
| Shader Units | 21760 |
Ray tracing and AI
| Upscaling Tech | DLSS 4 |
|---|
Memory
| Memory Bus Width | 512 bit |
|---|---|
| Memory Bandwidth | 1792 GB/s |
Power
| Recommended PSU | 1000 W |
|---|---|
| Power Connector | 1x 12V-2x6 |
Host interface
| PCIe Generation | PCIe 5.0 |
|---|
Display and media
| DisplayPort Version | DP 2.1b |
|---|---|
| DisplayPort Count | 3 |
| HDMI Version | HDMI 2.1b |
| HDMI Count | 2 |
Market and workstation
| MSRP | 1999 USD |
|---|
| Source URL | https://rog.asus.com/graphics-cards/graphics-cards/rog-astral/rog-astral-rtx5090-o32g-gaming/spec/ |
|---|
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Expert rating9 / 10
A solid flagship pick if its price and 32GB VRAM allocation match your target resolution.
Best for
- Gamers targeting the resolution this flagship tier is built for
- Builders who want 32GB of VRAM without moving up a tier
- Anyone upgrading from an older NVIDIA or rival card at a similar price point
Not for
- Buyers who need the absolute best price-to-performance and should compare street prices first
- 4K/high-refresh gamers if this card's tier sits below High-End
- SFF builders who haven't confirmed this card's length and slot width fit their case
FAQs
What are the key specifications of the ASUS ROG Astral OC GeForce RTX 5090?
The ASUS ROG Astral OC GeForce RTX 5090 is a graphics card from NVIDIA. Key specs: GPU Brand NVIDIA, Tier Flagship, Board Partner ASUS, VRAM (GB) 32GB GDDR7, Memory Type GDDR7.
Who is the ASUS ROG Astral OC GeForce RTX 5090 best suited to?
It suits gamers targeting the resolution this flagship tier is built for, builders who want 32gb of vram without moving up a tier, anyone upgrading from an older nvidia or rival card at a similar price point.
What are the drawbacks of the ASUS ROG Astral OC GeForce RTX 5090?
It is a poor fit for buyers who need the absolute best price-to-performance and should compare street prices first, 4k/high-refresh gamers if this card's tier sits below high-end, sff builders who haven't confirmed this card's length and slot width fit their case.