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

AX Gaming Rebel GeForce RTX 5080 X3W

Manufacturer: AX Gaming

The AX Gaming Rebel GeForce RTX 5080 X3W is a graphics card designed around NVIDIA's Blackwell architecture, targeting users who need a current-generation GPU with a well-rounded feature set. Running at a base clock of 2295 MHz and boosting up to 2640 MHz in turbo mode, the card draws 360W TDP and occupies a physical footprint of 316 mm by 131 mm. RGB lighting is included, and the board communicates with the rest of the system via a PCIe 5.0 interface.

On the memory side, the card carries 16GB of GDDR7 across a 256-bit bus, reaching an effective speed of 30000 MHz and a peak bandwidth of 960 GB/s. Its 10752 shading units are complemented by 336 texture mapping units and 112 render output units, yielding a texture rate of 887 GTexels/s and 56.77 TFLOPS of floating-point throughput. Display connectivity extends to four outputs — one HDMI 2.1b port and three DisplayPort connections — with support for ray tracing, DLSS, DirectX 12 Ultimate, and Intel Resizable BAR rounding out the feature list.

Pros
  • Supports up to four simultaneous displays, offering flexible multi-monitor setups
  • ECC memory support adds a layer of data integrity for workloads where memory accuracy matters
  • Intel Resizable BAR support allows the CPU broader access to VRAM, which can improve utilization
  • DLSS and ray tracing are both supported, enabling more advanced rendering options
  • RGB lighting is built in, allowing for visual customization without external add-ons
  • Double Precision Floating Point (DPFP) support extends the card's usefulness to compute-oriented tasks
Cons
  • A 360W TDP places significant demands on the power supply and system cooling
  • No USB-C output is available, limiting direct connectivity to certain modern displays and devices
  • Air-water cooling is not supported, so thermal management relies entirely on the included air cooler
  • The physical dimensions of 316 mm in width may present fitment challenges in smaller or mid-tower cases
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 across multiple screens will also find the four-display output support and 16GB of GDDR7 VRAM practical for high-resolution multi-monitor workflows. The inclusion of ray tracing, DLSS, and DirectX 12 Ultimate makes it a capable choice for users engaged in graphically intensive real-time applications where those rendering features are actively used.

Who is this NOT for?

The card's 360W TDP makes it a poor fit for users with modest or older power supplies, as the system will require substantial headroom to operate stably. Its 316 mm length also means it is not well-suited to compact or small-form-factor builds where physical clearance is limited. Additionally, users who rely on USB-C display connectivity or need DVI outputs will find the port selection restrictive, and those looking for air-water cooling flexibility will need to look elsewhere since that option is not supported.

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 2295 MHz that scales up to a turbo frequency of 2640 MHz, with a GPU memory speed of 1875 MHz. Its 10752 shading units work alongside 336 texture mapping units and 112 render output units, translating into a texture rate of 887 GTexels/s and a pixel rate of 295.7 GPixel/s. Overall floating-point throughput reaches 56.77 TFLOPS, and the card includes support for Double Precision Floating Point (DPFP), broadening its applicability across workloads that require 64-bit compute precision.

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, with an effective memory speed of 30000 MHz that yields a maximum memory bandwidth of 960 GB/s. ECC memory support is also present, which helps maintain data integrity during memory-intensive operations.

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 API requirements. Ray tracing and DLSS are both supported, while XeSS (XMX) is not present. Multi-display technology is included with support for up to four simultaneous displays, and stereoscopic 3D is also available. On the system integration side, the card works with Intel Resizable BAR and does not carry LHR restrictions. RGB lighting is built in, rounding out a feature set that covers both visual customization and functional display flexibility.

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 three DisplayPort connectors and one HDMI 2.1b port, with no DVI, mini DisplayPort, or USB-C outputs present.

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 manufactured using a 5 nm process, the GPU integrates 45,600 million transistors and connects to the host system via PCIe 5.0. It carries a Thermal Design Power 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 Rebel GeForce RTX 5080 X3W brings together a well-rounded set of specifications centered on the Blackwell architecture, with 16GB of GDDR7 memory, broad API support, and a feature set that includes ray tracing, DLSS, and ECC memory. Its 56.77 TFLOPS of floating-point performance combined with DPFP support gives it genuine utility beyond purely graphical workloads, making it relevant to users with mixed rendering and compute demands. That said, its 360W power requirement and 316 mm length mean it is best deployed in systems specifically built to accommodate it. For users whose workloads and hardware are aligned with what this card demands, it represents a coherent and capable option within the current-generation GPU landscape.