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AX Gaming GeForce RTX 5080 X3W OC specifications and in-depth review

AX Gaming GeForce RTX 5080 X3W OC

Manufacturer: AX Gaming

The AX Gaming GeForce RTX 5080 X3W OC is a high-end graphics card based on NVIDIA's Blackwell architecture, 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 peak memory bandwidth of 960 GB/s at an effective speed of 30,000 MHz. The card measures 316 mm in length and 131 mm in height, and features RGB lighting along with a 360W TDP.

On the compute side, the RTX 5080 X3W OC carries 10,752 shading units, 336 texture mapping units, and 112 render output units, reaching a texture rate of 887 GTexels/s and 56.77 TFLOPS of floating-point performance. The base clock sits at 2,295 MHz with a turbo frequency of 2,640 MHz, and the card supports DirectX 12 Ultimate, OpenGL 4.6, and OpenCL 3. Display connectivity includes one HDMI 2.1b port and three DisplayPort outputs, supporting up to four displays simultaneously, alongside features such as ray tracing, DLSS, Intel Resizable BAR, and stereoscopic 3D.

Pros
  • Supports up to four simultaneous displays through a combination of one HDMI 2.1b port and three DisplayPort outputs
  • 16GB of GDDR7 VRAM with a 960 GB/s memory bandwidth suits workloads that demand fast, large-capacity frame buffering
  • Ray tracing and DLSS support are both present, enabling hardware-accelerated rendering features
  • ECC memory support adds a layer of data integrity for compute-sensitive tasks
  • Double Precision Floating Point (DPFP) capability extends the card's usefulness beyond graphics into compute workloads
  • Intel Resizable BAR support allows the CPU broader access to GPU memory, which can improve data transfer efficiency
Cons
  • A 360W TDP places notable demands on system power delivery and case airflow
  • Air-water cooling is not supported, limiting thermal management to air-only solutions
  • The card measures 316 mm in length, which may not fit in smaller or compact PC cases
  • No USB-C output is available, restricting direct connectivity to displays or devices that rely on that interface
Who is this for?

This card is well suited to users who run demanding rendering and compute workloads, given its 56.77 TFLOPS of floating-point performance, DPFP support, and ECC memory capability. Content creators and technical users who work with large datasets or GPU-accelerated applications will benefit from the 960 GB/s memory bandwidth and 16GB of GDDR7 VRAM. Those looking to drive up to four displays simultaneously through a mix of HDMI 2.1b and DisplayPort outputs will also find the connectivity layout practical for multi-monitor setups.

Who is this NOT for?

Users building in compact or small-form-factor cases may find the 316 mm card length a significant physical constraint, as it requires a chassis with adequate clearance. The 360W TDP also makes this card a poor fit for systems with modest power supplies or limited airflow, since cooling relies entirely on air-only solutions with no air-water option available. Additionally, users who specifically need USB-C display output will find this card lacking, as no such port is included in its connectivity lineup.

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, supported by 10,752 shading units, 336 texture mapping units, and 112 render output units. These figures translate into a texture rate of 887 GTexels/s, a pixel rate of 295.7 GPixel/s, and 56.77 TFLOPS of floating-point performance, with the GPU memory running at 1,875 MHz. The card also supports Double Precision Floating Point (DPFP), broadening its suitability for compute-oriented workloads alongside standard graphics tasks.

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, reaching an effective memory speed of 30,000 MHz and a maximum bandwidth of 960 GB/s. ECC memory support is also included, which helps detect and correct memory errors in workloads where data integrity 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 range of graphics and compute APIs. Ray tracing and DLSS are both supported, alongside stereoscopic 3D and multi-display technology for up to four simultaneous outputs. Intel Resizable BAR is included to help the CPU access GPU memory more efficiently, while XeSS (XMX) and LHR are not present on this card. RGB lighting is built in, rounding out the feature set on the hardware side.

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 card's output configuration consists of one HDMI 2.1b port and three DisplayPort outputs, providing a total of four display connections. There are no USB-C, DVI, or mini DisplayPort outputs present 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 316 mm
height 131 mm

Built on the Blackwell architecture and fabricated at 5 nm, the GPU integrates 45,600 million transistors and connects via PCIe 5. It carries a TDP of 360W and does not include air-water cooling. The card measures 316 mm in width and 131 mm in height.

Final Verdict

The AX Gaming GeForce RTX 5080 X3W OC is a specification-dense graphics card built around the Blackwell architecture, and its combination of 960 GB/s memory bandwidth, 56.77 TFLOPS of floating-point performance, and ECC memory support makes it a credible option for users who split their workload between high-end graphics and compute-intensive tasks. Its four-display output capability and support for ray tracing, DLSS, and Intel Resizable BAR add practical versatility for multi-monitor and modern rendering workflows. That said, the 360W TDP, 316 mm length, and air-only cooling approach mean it demands a well-specced system to operate without constraint. For users whose build and workload requirements align with what this card offers, it represents a well-rounded option within its category.

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