Asus Prime GeForce RTX 5080 specifications and in-depth review

Asus Prime GeForce RTX 5080

Manufacturer: Asus

The Asus Prime GeForce RTX 5080 is a desktop graphics card built on NVIDIA's Blackwell architecture, manufactured using a 5nm process and housing 45,600 million transistors. It operates at a base clock of 2295 MHz with a boost frequency reaching 2617 MHz, and its 56.28 TFLOPS of floating-point performance reflects the compute capability packed into this design. The card measures 304mm in length and 126mm in height, drawing up to 360W under load via a PCIe 5.0 interface.

On the memory side, the RTX 5080 is equipped with 16GB of GDDR7 VRAM running across a 256-bit bus at an effective speed of 30,000 MHz, delivering up to 960 GB/s of memory bandwidth with ECC support included. The card provides 10,752 shading units, 336 texture mapping units, and 112 render output units, yielding a texture rate of 879.3 GTexels/s and a pixel rate of 293.1 GPixels/s. Display connectivity spans four outputs — one HDMI 2.1b port and three DisplayPort connections — while feature support covers DirectX 12 Ultimate, OpenGL 4.6, OpenCL 3, ray tracing, DLSS, and Intel Resizable BAR.

Pros
  • Supports up to four simultaneous display outputs through a combination of one HDMI 2.1b and three DisplayPort connections
  • GDDR7 memory running at an effective 30,000 MHz delivers 960 GB/s of bandwidth across a 256-bit bus
  • ECC memory support adds data integrity protection for reliability-sensitive workloads
  • Includes ray tracing and DLSS support, along with DirectX 12 Ultimate and OpenCL 3 compatibility
  • PCIe 5.0 interface ensures the card works with current-generation motherboard platforms
  • Double Precision Floating Point support broadens the card's suitability beyond pure graphics workloads
Cons
  • 360W TDP places significant demands on the system power supply and case airflow
  • No USB-C video output available, limiting compatibility with certain modern displays and adapters
  • Relies entirely on air cooling with no hybrid air-water option included
  • At 304mm in length, the card requires a sufficiently spacious case for proper installation
  • No RGB lighting for users who prioritize visual customization within their build
Who is this for?

This card is well-suited to users running demanding rendering, compute, or gaming workloads that benefit from high floating-point throughput and large, fast memory. The 16GB of GDDR7 VRAM with 960 GB/s of bandwidth makes it a practical choice for those working with high-resolution textures, 3D content creation, or complex simulation tasks, while ECC memory support and Double Precision Floating Point capability extend its usefulness to technically oriented users with reliability-sensitive or compute-heavy workflows. Multi-display setups of up to four screens are natively supported, making it equally fitting for users who require broad screen real estate across professional or content-focused environments.

Who is this NOT for?

Users working in space-constrained or thermally limited builds may find this card difficult to accommodate, as its 304mm length and 360W TDP demand a large case with robust airflow and a high-capacity power supply. The absence of a USB-C video output makes it a poor fit for anyone relying on USB-C-connected monitors or portable displays without additional adapters. Those seeking a visually customizable build with RGB lighting will also find nothing here, as the card ships without any lighting elements.

Performance:

GPU clock speed 2295 MHz
GPU turbo 2617 MHz
pixel rate 293.1 GPixel/s
floating-point performance 56.28 TFLOPS
texture rate 879.3 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 Prime GeForce RTX 5080 runs at a base GPU clock of 2295 MHz, boosting up to 2617 MHz under load, while GPU memory operates at 1875 MHz. With 56.28 TFLOPS of floating-point performance and double precision floating point support, the card handles compute-intensive workloads alongside its graphics tasks. Its 10,752 shading units are complemented by 336 texture mapping units and 112 render output units, producing a texture rate of 879.3 GTexels/s and a pixel rate of 293.1 GPixels/s.

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 Asus Prime GeForce RTX 5080 comes equipped with 16GB of GDDR7 VRAM running across a 256-bit memory bus, reaching an effective memory speed of 30,000 MHz and delivering a maximum memory bandwidth of 960 GB/s. ECC memory support is included, adding a layer of data integrity for workloads where memory reliability matters.

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 Prime GeForce RTX 5080 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, alongside stereoscopic 3D and multi-display technology spanning up to four simultaneous outputs. The card includes Intel Resizable BAR for optimized CPU-to-GPU data access, but does not feature XeSS (XMX), LHR, or RGB lighting.

Ports:

has an HDMI output
HDMI ports 1
HDMI version HDMI 2.1b
DisplayPort outputs 3
USB-C ports 0
DVI outputs 0
mini DisplayPort outputs 0

The Asus Prime GeForce RTX 5080 offers a total of four video outputs: one HDMI 2.1b port and three DisplayPort outputs. There are no USB-C, DVI, or mini DisplayPort connections on this card.

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 304 mm
height 126 mm

The Asus Prime GeForce RTX 5080 is built on the Blackwell architecture, fabricated at 5nm and integrating 45,600 million transistors. It connects via PCIe 5.0 and carries a thermal design power of 360W. The card measures 304mm in width and 126mm in height, and relies solely on air cooling, with no air-water hybrid cooling solution included.

Final Verdict

The Asus Prime GeForce RTX 5080 is a technically dense graphics card built around NVIDIA's Blackwell architecture, and its specification sheet reflects a clear focus on throughput-heavy workloads. The combination of 960 GB/s of memory bandwidth from 16GB of GDDR7 VRAM and strong compute credentials — including Double Precision Floating Point support and ray tracing — positions it firmly toward users who push hardware consistently rather than occasionally. Its physical footprint and 360W power requirement do narrow the field of compatible systems, so it rewards careful build planning. For users whose workflows and hardware can accommodate it, the RTX 5080 delivers a well-rounded and capable package across both graphics-intensive and compute-oriented tasks.

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