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Asus ROG Strix GeForce RTX 4080 Super OC Edition specifications and in-depth review

Asus ROG Strix GeForce RTX 4080 Super OC Edition

Manufacturer: Asus

The Asus ROG Strix GeForce RTX 4080 Super OC Edition is a high-tier graphics card from Asus, grounded in Nvidia's Ada Lovelace architecture and produced on a 5 nm process node. It carries 45,900 million transistors and features an overclocked configuration with a base clock of 2295 MHz and a boost clock of 2640 MHz. The card supports ray tracing, DLSS, DirectX 12 Ultimate, stereoscopic 3D, and RGB lighting, while accommodating up to four displays simultaneously across its five output ports.

On the memory side, the card is fitted with 16GB of GDDR6X VRAM running on a 256-bit bus at an effective speed of 23,000 MHz, yielding a peak bandwidth of 736.3 GB/s. ECC memory support is present, and Intel Resizable BAR is supported. The 10,240 shading units work alongside 320 texture mapping units and 112 render output units, achieving a texture rate of 844.8 GTexels/s and a floating-point throughput of 54.07 TFLOPS. Output connectivity includes two HDMI 2.1a ports and three DisplayPort outputs, with no USB-C, DVI, or mini DisplayPort connections available. The card draws up to 320W TDP, interfaces via PCIe 4.0, and measures 357.6 mm in width and 149.3 mm in height, with air cooling only.

Pros
  • 16GB of GDDR6X VRAM on a 256-bit bus provides a larger memory pool suited to high-resolution and memory-intensive workloads
  • A peak bandwidth of 736.3 GB/s supports fast data throughput for demanding rendering and compute tasks
  • Ray tracing and DLSS are both supported alongside DirectX 12 Ultimate, enabling a wide range of advanced rendering features
  • Two HDMI 2.1a ports and three DisplayPort outputs allow flexible multi-display configurations across up to four screens
  • ECC memory support adds a layer of data reliability for users running compute or professional workloads
  • Intel Resizable BAR support is included, allowing broader CPU access to GPU memory
Cons
  • At 357.6 mm wide and 149.3 mm tall, the card has a large physical footprint that may not fit in compact or smaller cases
  • A 320W TDP places significant power draw demands on the system, requiring a capable power supply
  • Water cooling is not supported, leaving users dependent on the card's built-in air cooling solution
  • No USB-C output is available, which may be a limitation for users with USB-C or Thunderbolt-based displays
  • XeSS (XMX) is not supported, limiting upscaling options to DLSS only
Who is this for?

The Asus ROG Strix GeForce RTX 4080 Super OC Edition is well-suited for users running demanding rendering and compute workloads, given its 54.07 TFLOPS of floating-point throughput, 10,240 shading units, and 16GB of GDDR6X VRAM with ECC support. The 736.3 GB/s memory bandwidth and 256-bit bus make it a strong fit for tasks that require sustained, high-speed data throughput. Users who need multi-display setups will benefit from the five available outputs — two HDMI 2.1a ports and three DisplayPort connections — allowing flexible configurations of up to four screens. The combination of ray tracing, DLSS, and DirectX 12 Ultimate also makes it well-matched for advanced real-time rendering workloads that rely on these capabilities.

Who is this NOT for?

The card's 320W TDP places substantial power demands on any system it is installed in, making it a poor fit for builds with limited power headroom or those prioritizing energy efficiency. At 357.6 mm wide and 149.3 mm tall, it is also unsuitable for compact or small-form-factor cases where physical clearance is a concern. Users who require water-cooling integration will find no support for it on this card, restricting thermal management entirely to the built-in air cooling solution. Additionally, the absence of USB-C output rules it out for users who depend on that connection type for their display setup.

Performance:

GPU clock speed 2295 MHz
GPU turbo 2640 MHz
pixel rate 295.7 GPixel/s
floating-point performance 54.07 TFLOPS
texture rate 844.8 GTexels/s
GPU memory speed 1438 MHz
shading units 10240
texture mapping units (TMUs) 320
render output units (ROPs) 112
Has Double Precision Floating Point (DPFP) ✓

The card operates at a base GPU clock of 2295 MHz, boosting up to 2640 MHz under load, with a GPU memory speed of 1438 MHz. Its 10,240 shading units are supported by 320 texture mapping units and 112 render output units, delivering a texture rate of 844.8 GTexels/s and a pixel rate of 295.7 GPixel/s. Floating-point throughput reaches 54.07 TFLOPS, and Double Precision Floating Point (DPFP) is supported.

Memory:

effective memory speed 23000 MHz
maximum memory bandwidth 736.3 GB/s
VRAM 16GB
GDDR version GDDR6X
memory bus width 256-bit
Supports ECC memory ✓

Memory consists of 16GB of GDDR6X VRAM on a 256-bit bus running at an effective speed of 23,000 MHz, which translates to a maximum bandwidth of 736.3 GB/s. ECC memory support is included, providing data integrity assurance for workloads where memory accuracy is a priority.

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 card supports DirectX 12 Ultimate, OpenGL 4.6, and OpenCL 3, covering a broad spectrum of modern graphics and compute APIs. Ray tracing and DLSS are both enabled, while XeSS (XMX) is not supported. Multi-display technology allows up to four screens to be connected at once, and stereoscopic 3D is also available. Intel Resizable BAR is supported, LHR is absent, and RGB lighting is present as part of the card's feature set.

Ports:

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

This card offers a total of five video outputs, consisting of two HDMI 2.1a ports and three DisplayPort outputs. USB-C, DVI, and mini DisplayPort connections are not present on this card.

General info:

GPU architecture Ada Lovelace
Thermal Design Power (TDP) 320W
PCI Express (PCIe) version 4
semiconductor size 5 nm
number of transistors 45900 million
Has air-water cooling ✕
width 357.6 mm
height 149.3 mm

This card is based on the Ada Lovelace architecture, built on a 5 nm process and packing 45,900 million transistors. It connects via PCIe 4.0 and carries a Thermal Design Power of 320W, reflecting the demands of its higher-tier specification set. Cooling is handled by air only, as water cooling is not supported. The card's physical footprint measures 357.6 mm in width and 149.3 mm in height, placing it firmly in the large-form-factor category.

Final Verdict

The Asus ROG Strix GeForce RTX 4080 Super OC Edition is a high-specification graphics card that brings together a dense feature set under the Ada Lovelace architecture, with 16GB of GDDR6X VRAM on a 256-bit bus and a 2640 MHz boost clock standing out as its most defining technical characteristics. Support for ray tracing, DLSS, DirectX 12 Ultimate, and up to five simultaneous display outputs rounds out a capable and feature-complete package. The card's 320W TDP and substantial physical dimensions mean it demands a well-equipped system with adequate space and power capacity, and the absence of water-cooling support is a consideration for users with specific thermal requirements. For those whose builds and workloads align with what it offers, the Asus ROG Strix GeForce RTX 4080 Super OC Edition represents a well-equipped option at the higher end of the Ada Lovelace graphics card lineup.