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Galax GeForce RTX 5080 Saber specifications and in-depth review

Galax GeForce RTX 5080 Saber

Manufacturer: Galax

The Galax GeForce RTX 5080 Saber is a desktop graphics card based on NVIDIA's Blackwell architecture, manufactured on a 5nm process with 45,600 million transistors. It operates at a base clock of 2295 MHz with a boost of 2617 MHz, and its 56.28 TFLOPS of floating-point performance reflects the compute headroom available across gaming and accelerated workloads. The card includes RGB lighting and supports up to four displays simultaneously.

On the memory side, the RTX 5080 Saber is equipped with 16GB of GDDR7 VRAM running at an effective speed of 30,000 MHz across a 256-bit bus, delivering up to 960 GB/s of bandwidth. It supports DirectX 12 Ultimate, OpenGL 4.6, OpenCL 3, ray tracing, and DLSS, alongside Intel Resizable BAR. Display connectivity is handled through one HDMI 2.1b port and three DisplayPort outputs, with a rated TDP of 360W and PCIe 5.0 interface compatibility.

Pros
  • Supports up to four displays simultaneously, making it suitable for multi-monitor setups
  • GDDR7 memory running at 30,000 MHz effective speed delivers 960 GB/s of bandwidth across a 256-bit bus
  • Ray tracing and DLSS support are both present, enabling a wider range of rendering options
  • ECC memory support adds data integrity reliability for precision-sensitive workloads
  • Intel Resizable BAR support allows the CPU to access the full VRAM pool directly, which can improve frame delivery in supported scenarios
  • RGB lighting is included for users who want visual customization of their build
Cons
  • A 360W TDP places significant demands on system power delivery and case airflow
  • Air-water cooling is not supported, limiting cooling flexibility to air-only solutions
  • No USB-C output is available, which may be a limitation for users with USB-C monitors or capture devices
  • With only one HDMI port, users needing multiple HDMI connections will require adapters or DisplayPort alternatives
  • The card dimensions of 316.5 mm in width may present fitment challenges in smaller or mid-tower cases
Who is this for?

This card is well-suited to users running demanding rendering and compute workloads, given its 56.28 TFLOPS of floating-point performance, DPFP support, and ECC memory — characteristics that align with 3D rendering, simulation, and professional creative pipelines. The combination of ray tracing, DLSS, and DirectX 12 Ultimate also makes it a strong fit for users engaged in high-fidelity real-time graphics work. Those who need to drive up to four displays simultaneously will find the multi-display support and four available output ports practical for expansive desktop or workstation setups.

Who is this NOT for?

Users working within compact or small-form-factor builds may face difficulties, as the card's 316.5 mm width requires a chassis with adequate clearance and the 360W TDP demands a robust power supply and strong case airflow. The absence of air-water cooling support also makes it a poor match for thermally constrained environments where liquid cooling integration would otherwise help manage heat output. Additionally, users who rely on USB-C monitor connectivity or need multiple HDMI outputs will find the port layout limiting, as the card offers no USB-C outputs and only a single HDMI port.

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 Galax GeForce RTX 5080 Saber runs at a base GPU clock of 2295 MHz, boosting up to 2617 MHz under load, while its 10,752 shading units and 336 texture mapping units contribute to a texture rate of 879.3 GTexels/s and a pixel rate of 293.1 GPixel/s. Floating-point performance reaches 56.28 TFLOPS, supported by 112 render output units and a GPU memory speed of 1875 MHz. The card also includes Double Precision Floating Point (DPFP) support, broadening its suitability beyond standard rasterization 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 ✓

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 present, adding a layer of data integrity for workloads where memory accuracy is a consideration.

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 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) is not available on this card. It handles up to four displays simultaneously through its multi-display support, and stereoscopic 3D is also included. Intel Resizable BAR is supported, LHR is not present, and the card features 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

Display connectivity on the RTX 5080 Saber consists of one HDMI 2.1b port and three DisplayPort outputs, giving a total of four available display connections. There are no USB-C, DVI, or mini DisplayPort outputs 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 316.5 mm
height 140.1 mm

The RTX 5080 Saber is built on the Blackwell architecture, fabricated at 5nm with 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 316.5 mm in width and 140.1 mm in height.

Final Verdict

The Galax GeForce RTX 5080 Saber is a specification-dense graphics card built around the Blackwell architecture, and its combination of 960 GB/s memory bandwidth via GDDR7, robust floating-point throughput, and a broad feature set — including ray tracing, DLSS, ECC memory, and DirectX 12 Ultimate — positions it firmly within the upper tier of the desktop GPU category. Its physical footprint and 360W power draw mean it demands a well-equipped system to function properly, and the lack of USB-C output and limited HDMI connectivity are constraints worth factoring in during any build planning. For users who can accommodate those requirements, the RTX 5080 Saber represents a capable option for both high-fidelity rendering tasks and multi-display workstation configurations.

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