Asus ROG Astral GeForce RTX 5080 specifications and in-depth review

Asus ROG Astral GeForce RTX 5080

Manufacturer: Asus

The Asus ROG Astral GeForce RTX 5080 is a high-end graphics card from Asus's Republic of Gamers lineup, designed around Nvidia's Blackwell architecture and manufactured on a 5 nm process with 45,600 million transistors. It ships with 16GB of GDDR7 VRAM across a 256-bit memory bus, delivering a maximum memory bandwidth of 960 GB/s and an effective memory speed of 30,000 MHz, making it a substantial option for memory-intensive workloads.

On the rendering side, the card operates at a base clock of 2,295 MHz with a boost up to 2,640 MHz, backed by 10,752 shading units, 336 texture mapping units, and 112 render output units, yielding a texture rate of 887 GTexels/s and floating-point performance of 56.77 TFLOPS. It supports DirectX 12 Ultimate, OpenGL 4.6, ray tracing, and DLSS, and offers connectivity through two HDMI 2.1b ports and three DisplayPort outputs, with Intel Resizable BAR support and RGB lighting included.

Pros
  • Supports up to four displays simultaneously, offering flexibility for multi-monitor setups
  • Five video outputs in total — two HDMI 2.1b and three DisplayPort — provide a range of connection options
  • ECC memory support adds a layer of data reliability for precision-sensitive workloads
  • DLSS and ray tracing are both supported, enabling advanced rendering capabilities
  • Double Precision Floating Point (DPFP) support broadens the card's suitability beyond typical graphics workloads
  • RGB lighting is included for those who want visual customization in their build
Cons
  • A 360W TDP places significant demand on system power supplies and case airflow
  • The card measures 357.6 mm in length, which may not fit in smaller or mid-tower cases
  • No USB-C output is available, limiting connectivity for displays or devices that rely on that interface
  • Air-water cooling is not included, so thermal management depends entirely on the stock cooler
  • Multi-GPU is not supported, ruling out any future dual-card configurations
Who is this for?

This card is well-suited to users who demand a high level of rendering throughput for demanding graphical workloads, given its 56.77 TFLOPS of floating-point performance, ray tracing support, and DLSS capability. The inclusion of DPFP and ECC memory also makes it a practical choice for precision compute tasks that require data integrity alongside raw GPU power. Users running multi-monitor setups will also benefit from the five-output configuration and support for up to four simultaneous displays.

Who is this NOT for?

The card's 360W TDP and 357.6 mm length make it a poor fit for compact or small-form-factor builds, where both power delivery and physical clearance are likely to be constrained. Users without a robust cooling and airflow setup may also struggle, as no air-water cooling solution is included. Additionally, those looking to expand into a multi-GPU configuration will find no support for it here, and the absence of a USB-C output may be a drawback for users whose displays or workflows depend on that connection type.

Performance:

GPU clock speed 2295 MHz
GPU turbo 2640 MHz
pixel rate 295.7 GPixel/s
floating-point performance 56.77 TFLOPS
texture rate 887 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 Performance section of this card centers on a base GPU clock of 2,295 MHz that boosts up to 2,640 MHz, supporting a floating-point output of 56.77 TFLOPS alongside a pixel rate of 295.7 GPixel/s and a texture rate of 887 GTexels/s. These figures are backed by 10,752 shading units, 336 texture mapping units, and 112 render output units, with a GPU memory speed of 1,875 MHz contributing to overall throughput. The card also includes Double Precision Floating Point (DPFP) support, broadening its suitability for workloads that rely on high-precision computation.

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

This card's memory configuration consists of 16GB of GDDR7 VRAM running across a 256-bit bus, reaching an effective memory speed of 30,000 MHz and a maximum memory bandwidth of 960 GB/s. ECC memory support is included, adding a layer of data integrity for workloads where memory accuracy is a consideration.

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
multi-GPU 0
has RGB lighting
supported displays 4

The card supports DirectX 12 Ultimate, OpenGL 4.6, and OpenCL 3, covering a broad range of graphics and compute API requirements. Ray tracing, DLSS, and stereoscopic 3D are all included, while XeSS (XMX) and LHR are not present on this model. Multi-display technology is supported with a maximum of four simultaneous displays, and Intel Resizable BAR is available to help the CPU access GPU memory more efficiently. Multi-GPU functionality is not supported, and the card includes RGB lighting.

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 five video connections in total. 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 and fabricated using a 5 nm process, this card integrates 45,600 million transistors and connects via PCIe 5. It carries a Thermal Design Power of 360W and measures 357.6 mm in width and 149.3 mm in height. Air-water cooling is not included, and the card relies solely on its own cooling solution as shipped.

Final Verdict

The Asus ROG Astral GeForce RTX 5080 presents a well-rounded specification sheet for users seeking substantial GPU capability, anchored by its Blackwell architecture, 960 GB/s of memory bandwidth, and broad feature support including ray tracing, DLSS, and DPFP. Its five-output display configuration and ECC memory support add practical value for both multi-monitor and compute-oriented use cases. That said, its 360W power requirement and 357.6 mm length mean it demands a well-equipped system with adequate space and power headroom. For users whose builds and workloads align with those requirements, the RTX 5080 Astral represents a capable and feature-complete option in the high-end graphics card segment.

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