TurboVS
Galax GeForce RTX 5070 Star Nox OC specifications and in-depth review

Galax GeForce RTX 5070 Star Nox OC

Manufacturer: Galax

The Galax GeForce RTX 5070 Star Nox OC is a desktop graphics card based on NVIDIA's Blackwell architecture, manufactured on a 5 nm process and housing 31,100 million transistors. It ships with 12GB of GDDR7 memory running across a 192-bit bus, delivering an effective memory speed of 28,000 MHz and a peak bandwidth of 672 GB/s. The card features RGB lighting and supports up to four simultaneous displays, making it a versatile option for multi-monitor setups.

On the performance side, the Galax RTX 5070 Star Nox OC runs a base GPU clock of 2,325 MHz with a turbo frequency of 2,587 MHz, contributing to a floating-point throughput of 31.79 TFLOPS and a texture fill rate of 496.7 GTexels/s. It integrates 6,144 shading units, 192 TMUs, and 80 ROPs, and carries a TDP of 250W with a PCIe 5.0 interface. Feature support includes DirectX 12 Ultimate, OpenGL 4.6, ray tracing, DLSS, and Intel Resizable BAR, with connectivity provided through one HDMI 2.1b port and three DisplayPort outputs.

Pros
  • Supports up to four simultaneous displays, offering flexibility for multi-monitor setups
  • GDDR7 memory with 672 GB/s bandwidth and ECC support adds reliability for data-sensitive workloads
  • Four video outputs cover a wide range of connectivity needs with HDMI 2.1b and three DisplayPort ports
  • Hardware ray tracing and DLSS support are included, enabling advanced rendering features
  • PCIe 5.0 interface ensures the card is compatible with current-generation platforms
  • Double Precision Floating Point (DPFP) support extends usability to compute workloads beyond standard rendering
Cons
  • 250W TDP places notable demands on system power delivery and cooling infrastructure
  • No water-cooling option is available, relying entirely on air cooling
  • The 345 mm length requires careful consideration of case compatibility before installation
  • Only 12GB of VRAM on a 192-bit bus may feel limiting for workloads that benefit from wider memory buses
  • No USB-C output limits connectivity options for certain modern displays and devices
Who is this for?

This card is well-suited for users who work across multi-monitor setups, as it supports up to four simultaneous displays through a combination of HDMI 2.1b and three DisplayPort outputs. Its DLSS and hardware ray tracing support make it a solid choice for those engaged in visually demanding rendering workloads, while the inclusion of Double Precision Floating Point and ECC memory broadens its appeal to users running compute-intensive or data-sensitive tasks alongside standard graphics workloads.

Who is this NOT for?

Users working in environments with strict space constraints may find the 345 mm card length a limiting factor, as it requires a sufficiently large chassis to fit without issue. Those who rely on USB-C display connectivity will find this card unsuitable, since no USB-C output is available. Additionally, workloads that place heavy demand on memory capacity and bandwidth beyond what a 12GB, 192-bit configuration can offer may encounter limitations, making this card less appropriate for the most memory-intensive professional applications.

Performance:

GPU clock speed 2325 MHz
GPU turbo 2587 MHz
pixel rate 207 GPixel/s
floating-point performance 31.79 TFLOPS
texture rate 496.7 GTexels/s
GPU memory speed 1750 MHz
shading units 6144
texture mapping units (TMUs) 192
render output units (ROPs) 80
Has Double Precision Floating Point (DPFP) ✓

The Performance section of the Galax GeForce RTX 5070 Star Nox OC reflects a GPU running at a base clock of 2,325 MHz, boosting up to 2,587 MHz under load. The card delivers a floating-point throughput of 31.79 TFLOPS, paired with a texture fill rate of 496.7 GTexels/s and a pixel rate of 207 GPixel/s. Underpinning these figures are 6,144 shading units, 192 texture mapping units, and 80 render output units, while the GPU memory operates at 1,750 MHz. The card also supports Double Precision Floating Point (DPFP), broadening its suitability for compute-oriented workloads alongside standard rendering tasks.

Memory:

effective memory speed 28000 MHz
maximum memory bandwidth 672 GB/s
VRAM 12GB
GDDR version GDDR7
memory bus width 192-bit
Supports ECC memory ✓

The Galax GeForce RTX 5070 Star Nox OC is equipped with 12GB of GDDR7 VRAM running across a 192-bit memory bus, reaching an effective memory speed of 28,000 MHz and a peak bandwidth of 672 GB/s. The card also supports ECC memory, which helps detect and correct memory errors, adding a degree of reliability for workloads where data integrity is a concern.

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 5070 Star Nox OC supports DirectX 12 Ultimate, OpenGL 4.6, and OpenCL 3, covering a broad range of graphics and compute APIs. It includes hardware-accelerated ray tracing and DLSS, alongside stereoscopic 3D and multi-display support for up to four screens simultaneously. Intel Resizable BAR is supported, while XeSS (XMX) and LHR are not present on this card. The card also features RGB lighting, adding a visual element to its physical design.

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 Galax GeForce RTX 5070 Star Nox OC provides a total of four video outputs: one HDMI 2.1b port and three DisplayPort outputs. There are no DVI, mini DisplayPort, or USB-C ports on this card.

General info:

GPU architecture Blackwell
Thermal Design Power (TDP) 250W
PCI Express (PCIe) version 5
semiconductor size 5 nm
number of transistors 31100 million
Has air-water cooling ✕
width 345 mm
height 155 mm

The Galax GeForce RTX 5070 Star Nox OC is built on the Blackwell architecture, fabricated using a 5 nm process and integrating 31,100 million transistors. It connects via a PCIe 5.0 interface and carries a TDP of 250W, relying solely on air cooling without a water-cooling option. The card measures 345 mm in width and 155 mm in height, giving a clear indication of the physical space it requires inside a system.

Final Verdict

The Galax GeForce RTX 5070 Star Nox OC is a capable graphics card built on the Blackwell architecture that brings together a solid feature set for users seeking both rendering and compute functionality in a single card. Its GDDR7 memory with ECC support, hardware ray tracing, DLSS, and multi-display capability up to four screens make it a well-rounded option for demanding visual workloads. That said, prospective buyers should account for its physical size and power requirements when planning a build. Overall, the RTX 5070 Star Nox OC represents a technically well-specified card for users whose needs align with its capabilities, provided their system can accommodate it appropriately.