Asus ROG Astral GeForce RTX 5080 OC Edition

Name: Asus ROG Astral GeForce RTX 5080 OC Edition
Brand: Asus
SKU: 31509

Manufacturer: Asus

The Asus ROG Astral GeForce RTX 5080 OC Edition is a high-end graphics card that sits within Nvidia's RTX 5000 series lineup, built on the Blackwell architecture and manufactured using a 5 nm process. It carries 45,600 million transistors and operates with a base GPU clock of 2295 MHz, stepping up to a turbo frequency of 2760 MHz under load. The card supports RGB lighting and is compatible with up to four displays simultaneously.

On the memory side, the RTX 5080 OC Edition is equipped with 16GB of GDDR7 VRAM running on a 256-bit bus at an effective speed of 30,000 MHz, delivering a maximum bandwidth of 960 GB/s. Floating-point performance is rated at 59.35 TFLOPS, with a texture rate of 927.4 GTexels/s across 336 texture mapping units and 112 render output units. The card draws up to 360W TDP, connects via PCIe 5.0, and offers a port configuration of two HDMI 2.1b outputs and three DisplayPort connections. Feature support includes DirectX 12 Ultimate, OpenGL 4.6, ray tracing, DLSS, and Intel Resizable BAR, alongside ECC memory compatibility and stereoscopic 3D.

Pros

Supports up to four simultaneous display outputs through a combination of two HDMI 2.1b and three DisplayPort connections
16GB of GDDR7 VRAM with a 960 GB/s bandwidth ceiling suits memory-intensive workloads
ECC memory support adds data integrity protection useful in compute-oriented tasks
Includes ray tracing, DLSS, stereoscopic 3D, and DirectX 12 Ultimate, covering a wide range of modern rendering features
PCIe 5.0 interface ensures the card is compatible with current-generation platform standards
RGB lighting is built in, offering visual customization without requiring separate hardware

Cons

360W TDP places significant demand on system power delivery and case airflow
Air-water cooling is not supported, limiting cooling flexibility to air-only solutions
No USB-C output is available, restricting connectivity options for certain monitors and devices
The card's 357.6 mm length may not fit in smaller or mid-tower chassis without compatibility checks
XeSS (XMX) is not supported, narrowing upscaling options to DLSS only

Who is this for?

This card is well-suited to users running demanding rendering and compute workloads, given its 59.35 TFLOPS of floating-point performance, 16GB of GDDR7 VRAM, and ECC memory support. The combination of ray tracing, DLSS, and DirectX 12 Ultimate makes it a strong fit for those working with modern real-time graphics pipelines or high-fidelity game engines. The five-output display configuration — two HDMI 2.1b and three DisplayPort — also makes it practical for users who need multi-monitor setups for creative or professional desktop environments.

Who is this NOT for?

The card's 360W TDP and air-only cooling requirement make it a poor match for compact or small-form-factor builds where thermal headroom and power delivery are constrained. Users working in environments where USB-C display connectivity is standard will find the lack of any USB-C output a notable limitation. Additionally, those looking for upscaling flexibility beyond DLSS — such as workflows that rely on XeSS — will find that feature absent from this card's specification set.

Performance:

GPU clock speed	2295 MHz
GPU turbo	2760 MHz
pixel rate	309.1 GPixel/s
floating-point performance	59.35 TFLOPS
texture rate	927.4 GTexels/s
GPU memory speed	1875 MHz
shading units	10752
texture mapping units (TMUs)	336
render output units (ROPs)	112
Has Double Precision Floating Point (DPFP)	✓

The Asus ROG Astral GeForce RTX 5080 OC Edition operates at a base GPU clock of 2295 MHz, boosting up to 2760 MHz under turbo conditions, while the GPU memory runs at 1875 MHz. Floating-point performance reaches 59.35 TFLOPS, complemented by a texture rate of 927.4 GTexels/s and a pixel rate of 309.1 GPixel/s. The card features 10,752 shading units, 336 texture mapping units, and 112 render output units, and it includes support for Double Precision Floating Point (DPFP).

Memory:

effective memory speed	30000 MHz
maximum memory bandwidth	960 GB/s
VRAM	16GB
GDDR version	GDDR7
memory bus width	256-bit
Supports ECC memory	✓

The card is equipped with 16GB of GDDR7 VRAM running across a 256-bit memory bus, with an effective memory speed of 30,000 MHz and a maximum memory bandwidth of 960 GB/s. ECC memory support is also included, adding an extra layer of data integrity for workloads that require it.

Features:

DirectX version	DirectX 12 Ultimate
OpenGL version	4.6
OpenCL version	3
Supports multi-display technology	✓
supports ray tracing	✓
Supports 3D	✓
supports DLSS	✓
has XeSS (XMX)	✕
AMD SAM / Intel Resizable BAR	Intel Resizable BAR
has LHR	✕
has RGB lighting	✓
supported displays	4

The Asus ROG Astral GeForce RTX 5080 OC Edition supports DirectX 12 Ultimate, OpenGL 4.6, and OpenCL 3, covering a broad range of graphics and compute workloads. It includes hardware-accelerated ray tracing and DLSS support, alongside stereoscopic 3D and multi-display technology for up to four simultaneous outputs. Intel Resizable BAR is supported, while XeSS (XMX) and LHR are not present on this card. RGB lighting is built in, rounding out the feature set for this model.

Ports:

has an HDMI output	✓
HDMI ports	2
HDMI version	HDMI 2.1b
DisplayPort outputs	3
USB-C ports	0
DVI outputs	0
mini DisplayPort outputs	0

The card's output configuration consists of two HDMI 2.1b ports and three DisplayPort outputs, providing a total of five display connections. There are no USB-C, DVI, or mini DisplayPort outputs on this model.

General info:

GPU architecture	Blackwell
Thermal Design Power (TDP)	360W
PCI Express (PCIe) version	5
semiconductor size	5 nm
number of transistors	45600 million
Has air-water cooling	✕
width	357.6 mm
height	149.3 mm

Built on the Blackwell architecture using a 5 nm manufacturing process, the card integrates 45,600 million transistors and connects to the system via PCIe 5.0. It carries a Thermal Design Power rating of 360W and does not include air-water cooling. Physically, the card measures 357.6 mm in width and 149.3 mm in height.

Final Verdict

The Asus ROG Astral GeForce RTX 5080 OC Edition is a technically dense graphics card built around Nvidia's Blackwell architecture, combining 59.35 TFLOPS of compute throughput with 16GB of high-bandwidth GDDR7 VRAM and a broad feature set that includes ray tracing, DLSS, and DirectX 12 Ultimate. Its five-output display configuration and ECC memory support extend its relevance beyond gaming into more compute-oriented and multi-display workflows, though its 360W power draw and air-only cooling requirement mean it demands a well-equipped system to operate within its design parameters. For users with a compatible full-size build and the power infrastructure to match, this card represents a well-specified option within the high-end discrete GPU segment.