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Asus GeForce RTX 5080 Noctua OC Edition specifications and in-depth review

Asus GeForce RTX 5080 Noctua OC Edition

Manufacturer: Asus

The Asus GeForce RTX 5080 Noctua OC Edition is a high-end graphics card that pairs NVIDIA's Blackwell GPU architecture with Asus's own OC Edition tuning and Noctua's renowned thermal engineering. Running at a base clock of 2295 MHz and capable of reaching 2700 MHz in turbo mode, the card is designed for demanding workloads while keeping thermals in check through its air-cooling solution. It supports up to four displays simultaneously and includes RGB lighting for those who care about aesthetics alongside performance.

On the memory side, the card carries 16GB of GDDR7 VRAM across a 256-bit bus, delivering an effective memory speed of 30000 MHz and a peak bandwidth of 960 GB/s, with ECC memory support also included. Compute specifications place it at 58.06 TFLOPS of floating-point performance, backed by 10752 shading units, 336 texture mapping units, and 112 render output units. The card supports DirectX 12 Ultimate, OpenGL 4.6, OpenCL 3, ray tracing, DLSS, and Intel Resizable BAR, and connects via two HDMI 2.1b ports and three DisplayPort outputs. With a TDP of 360W and dimensions of 385 mm by 151 mm, it is built around a 5 nm process node housing 45.6 billion transistors and uses PCIe 5.0 for host connectivity.

Pros
  • Supports up to four displays simultaneously, offering flexibility for multi-monitor setups
  • Five video outputs in total — two HDMI 2.1b ports and three full-size DisplayPort connections — provide a wide range of connectivity options
  • ECC memory support adds a layer of data integrity for workloads where memory reliability matters
  • Double Precision Floating Point (DPFP) support broadens the card's suitability beyond standard graphics tasks
  • Intel Resizable BAR support allows the CPU to access the full VRAM pool more efficiently
  • RGB lighting is included for those who want visual customization within their build
Cons
  • A TDP of 360W places significant demands on the power supply, requiring careful system planning
  • At 385 mm in length, the card's physical footprint may not fit in smaller or mid-tower cases
  • No USB-C output is available, limiting direct connectivity to displays or devices that rely on that interface
  • The cooling solution is air-only, with no water-cooling option built in
  • XeSS (XMX) is not supported, restricting upscaling options to DLSS only
Who is this for?

This card is well-matched to users running demanding rendering, 3D workloads, or compute-intensive tasks that can take advantage of its 58.06 TFLOPS of floating-point performance, DPFP support, and ECC memory. Content creators and technical users working with large datasets will also benefit from the 16GB of GDDR7 VRAM and 960 GB/s of memory bandwidth, which provide substantial headroom for high-resolution assets and parallel workloads. The five-output display configuration, with support for up to four simultaneous screens, further makes it a reasonable fit for users who rely on expansive multi-monitor setups for productivity or creative work.

Who is this NOT for?

At 385 mm in length and with a 360W TDP, this card is a poor fit for anyone working with a compact or mid-tower case that lacks the physical space or power delivery to accommodate it comfortably. Users looking for a water-cooled or liquid-hybrid thermal solution will also find this card unsuitable, as it relies entirely on air cooling with no built-in water-cooling option. Additionally, those who depend on USB-C display output or Intel XeSS upscaling as part of their workflow will find those capabilities absent here.

Performance:

GPU clock speed 2295 MHz
GPU turbo 2700 MHz
pixel rate 302.4 GPixel/s
floating-point performance 58.06 TFLOPS
texture rate 907.2 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 2295 MHz that scales up to 2700 MHz under turbo conditions, with the underlying compute resources consisting of 10752 shading units, 336 texture mapping units, and 112 render output units. Those units translate into a texture rate of 907.2 GTexels/s and a pixel rate of 302.4 GPixel/s, while overall floating-point performance reaches 58.06 TFLOPS. The GPU memory itself runs at 1875 MHz, and the card includes support for Double Precision Floating Point (DPFP), broadening its suitability for compute-oriented tasks alongside traditional graphics workloads.

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 is equipped with 16GB of GDDR7 VRAM running across a 256-bit memory bus, achieving an effective memory speed of 30000 MHz and a maximum bandwidth of 960 GB/s. These figures reflect the throughput capacity available for handling large datasets and texture-heavy workloads. ECC memory support is also included, adding a layer of data integrity for use cases where memory reliability 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 ✕
has RGB lighting ✓
supported displays 4

On the software and feature side, the card supports DirectX 12 Ultimate, OpenGL 4.6, and OpenCL 3, covering a broad range of graphics and compute APIs. Ray tracing and DLSS are both supported, as is stereoscopic 3D, while XeSS (XMX) and LHR are not present on this card. Multi-display technology is supported with a maximum of four displays, and Intel Resizable BAR is included to help the CPU access GPU memory more efficiently. RGB lighting is built in, rounding out the feature set on the physical side.

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, giving a total of five video connectors across the bracket. There are no USB-C, DVI, or mini DisplayPort outputs present, so connectivity is focused entirely on the full-size HDMI and DisplayPort interfaces.

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 385 mm
height 151 mm

Built on the Blackwell architecture and fabbed on a 5 nm process, the GPU integrates 45,600 million transistors and connects to the host system via PCIe 5.0. It carries a TDP of 360W and relies on air cooling, as water cooling is not part of this design. Physically, the card measures 385 mm in width and 151 mm in height, which is worth accounting for when planning case compatibility.

Final Verdict

The Asus GeForce RTX 5080 Noctua OC Edition is a well-specified graphics card that brings together the Blackwell architecture, a substantial 16GB GDDR7 memory pool, and a broad feature set including ray tracing, DLSS, and ECC support — making it a credible option for users with demanding rendering, compute, or multi-display workloads. Its 960 GB/s of memory bandwidth and DPFP capability give it genuine utility beyond standard gaming scenarios, appealing to technically oriented users who need both graphical throughput and compute reliability. That said, its 360W TDP and 385 mm length mean it demands a well-specced system to house it properly, and the absence of USB-C output or water-cooling support will matter to a subset of users. For those whose setup can accommodate it, this card covers a wide range of intensive use cases without compromise.

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