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Galax GeForce RTX 5080 Saber OC specifications and in-depth review

Galax GeForce RTX 5080 Saber OC

Manufacturer: Galax

The Galax GeForce RTX 5080 Saber OC is a desktop graphics card based on NVIDIA's Blackwell architecture, manufactured on a 5 nm process and featuring 10,752 shading units alongside a boost clock of 2,655 MHz. It carries a 360W TDP and connects via PCIe 5.0, making it a technically dense offering within the RTX 5080 product family. RGB lighting is included, and the card measures 316.5 mm in length and 140.1 mm in height.

On the memory side, the card is equipped with 16GB of GDDR7 across a 256-bit bus, delivering a maximum bandwidth of 960 GB/s at an effective speed of 30,000 MHz. It supports DirectX 12 Ultimate, OpenGL 4.6, and OpenCL 3, along with ray tracing and DLSS. Display output is handled through one HDMI 2.1b port and three DisplayPort connections, supporting up to four displays simultaneously. Intel Resizable BAR is supported, and ECC memory is also available.

Pros
  • Supports up to four displays simultaneously, making it suitable for multi-monitor setups
  • GDDR7 memory with a 960 GB/s bandwidth ceiling provides substantial throughput for demanding workloads
  • Ray tracing and DLSS support are both present, enabling two key rendering technologies in compatible titles
  • ECC memory support adds data integrity assurance for compute-oriented tasks
  • Intel Resizable BAR is supported, allowing the CPU broader access to GPU memory
  • RGB lighting is included for users who prioritize visual customization in their builds
Cons
  • A 360W TDP places significant demands on the power supply and system cooling
  • No water cooling support is available, limiting thermal management to air cooling only
  • The card offers no USB-C output, which restricts connectivity options for certain modern displays
  • At 316.5 mm in length, physical fitment may be a concern in smaller or mid-tower cases
  • Only a single HDMI port is available, which may be limiting when connecting multiple HDMI-only displays
Who is this for?

This card is well-matched for users running demanding rendering and compute workloads, given its 57.09 TFLOPS of floating-point performance, DPFP support, and ECC memory — attributes that benefit tasks such as 3D rendering, simulation, and GPU-accelerated computation. Gamers and creators who rely on ray tracing and DLSS will find both features fully supported, and the ability to drive up to four displays simultaneously makes it a practical fit for multi-monitor desktop setups where screen real estate is a priority.

Who is this NOT for?

Users working in space-constrained builds may find the 316.5 mm card length difficult to accommodate, making it a poor fit for compact or small form factor cases. The 360W TDP also rules it out for systems with modest power supplies or limited airflow, as the card depends entirely on air cooling with no water cooling option available. Additionally, users who rely on USB-C display connectivity or require multiple HDMI outputs will find the port layout — one HDMI and no USB-C — restrictive for their specific setup needs.

Performance:

GPU clock speed 2295 MHz
GPU turbo 2655 MHz
pixel rate 297.4 GPixel/s
floating-point performance 57.09 TFLOPS
texture rate 892.1 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 Galax GeForce RTX 5080 Saber OC operates at a base GPU clock of 2,295 MHz, rising to 2,655 MHz in turbo mode, while its 10,752 shading units and 336 texture mapping units contribute to a texture rate of 892.1 GTexels/s. Floating-point performance reaches 57.09 TFLOPS, and the pixel rate stands at 297.4 GPixel/s, backed by 112 render output units. GPU memory runs at 1,875 MHz, and the card supports Double Precision Floating Point (DPFP), rounding out a well-specified performance profile across its core processing metrics.

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 card comes equipped with 16GB of GDDR7 VRAM running at an effective speed of 30,000 MHz across a 256-bit memory bus, yielding a maximum memory bandwidth of 960 GB/s. ECC memory support is also included, adding a layer of data integrity for workloads that require it.

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 Galax GeForce RTX 5080 Saber OC 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, while XeSS (XMX) and LHR are not present on this card. It supports stereoscopic 3D, multi-display technology across up to four displays simultaneously, and Intel Resizable BAR. RGB lighting is included, 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, with no USB-C, DVI, or mini DisplayPort connections 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 316.5 mm
height 140.1 mm

Built on the Blackwell architecture and fabricated using a 5 nm process, the card integrates 45,600 million transistors and connects to the host system via PCIe 5.0. It carries a TDP of 360W and relies solely on air cooling, as water cooling is not supported. The card measures 316.5 mm in width and 140.1 mm in height.

Final Verdict

The Galax GeForce RTX 5080 Saber OC is a technically dense graphics card built around the Blackwell architecture, combining 57.09 TFLOPS of floating-point performance with 16GB of GDDR7 memory at 960 GB/s bandwidth — a specification profile clearly aimed at users with serious rendering, compute, or high-fidelity gaming demands. Its support for ray tracing, DLSS, ECC memory, and up to four simultaneous displays adds meaningful versatility across both creative and gaming workloads. That said, its 360W TDP, reliance on air cooling alone, and physical footprint mean it is best suited to well-specced, full-size systems rather than compact builds. For users whose setup can accommodate it, the RTX 5080 Saber OC represents a well-equipped option within its product tier.