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

Galax GeForce RTX 5070 Ti Star Nox OC

Manufacturer: Galax

The Galax GeForce RTX 5070 Ti Star Nox OC is a desktop 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 memory across a 256-bit bus, delivering a maximum memory bandwidth of 896 GB/s at an effective speed of 28,000 MHz. The card measures 348 mm in length and 155 mm in height, and includes RGB lighting alongside support for up to four simultaneous displays.

On the compute side, the RTX 5070 Ti Star Nox OC operates at a base clock of 2,295 MHz and reaches a boost frequency of 2,527 MHz, yielding 45.28 TFLOPS of floating-point performance. Its 8,960 shading units are complemented by 280 texture mapping units and 96 render output units, producing a texture rate of 707.6 GTexels/s and a pixel rate of 242.6 GPixels/s. The card supports DirectX 12 Ultimate, OpenGL 4.6, OpenCL 3, ray tracing, DLSS, and Intel Resizable BAR, and connects via PCIe 5.0 with a rated TDP of 350W. Display output is handled through one HDMI 2.1b port and three DisplayPort connectors.

Pros
  • Supports up to four simultaneous displays, offering flexibility for multi-monitor setups
  • 16GB of GDDR7 VRAM across a 256-bit bus provides substantial memory capacity for demanding workloads
  • ECC memory support adds a layer of data integrity for compute-sensitive tasks
  • Ray tracing and DLSS are both supported, enabling hardware-accelerated rendering features
  • Intel Resizable BAR support allows the CPU to access the full GPU memory pool more efficiently
  • RGB lighting is built in, giving users visual customization options
Cons
  • A 350W TDP places considerable demand on the power supply, requiring adequate system power headroom
  • Water cooling is not supported, limiting thermal management to air cooling only
  • No USB-C video output is available, which may be a limitation for users with USB-C displays
  • Only one HDMI port is included, restricting simultaneous HDMI connections to a single display
Who is this for?

This card is well-suited to users who run demanding rendering and compute workloads, given its 45.28 TFLOPS of floating-point performance, ECC memory support, and Double Precision Floating Point capability. The 16GB of GDDR7 VRAM also makes it a practical fit for those working with large textures, high-resolution assets, or memory-intensive 3D applications. Additionally, users who want to drive multi-monitor setups of up to four displays will find the combination of three DisplayPort outputs and one HDMI 2.1b port accommodating, while DLSS and ray tracing support make it relevant for those playing or developing graphically intensive games.

Who is this NOT for?

Users with constrained power delivery will find the 350W TDP a significant barrier, as it demands a well-specced power supply and adequate case airflow. Since water cooling is not supported, those building in thermally challenging environments or seeking quieter operation through liquid cooling solutions will need to look elsewhere. The card is also not a good fit for anyone relying on USB-C or DVI video outputs, as neither is available, and the single HDMI port limits users who need to connect multiple HDMI displays simultaneously.

Performance:

GPU clock speed 2295 MHz
GPU turbo 2527 MHz
pixel rate 242.6 GPixel/s
floating-point performance 45.28 TFLOPS
texture rate 707.6 GTexels/s
GPU memory speed 1750 MHz
shading units 8960
texture mapping units (TMUs) 280
render output units (ROPs) 96
Has Double Precision Floating Point (DPFP) ✓

The Galax GeForce RTX 5070 Ti Star Nox OC runs at a base GPU clock of 2,295 MHz, boosting up to 2,527 MHz under load, while its GPU memory operates at 1,750 MHz. With 8,960 shading units, 280 texture mapping units, and 96 render output units, the card achieves a texture rate of 707.6 GTexels/s and a pixel rate of 242.6 GPixels/s. Overall floating-point throughput reaches 45.28 TFLOPS, and the GPU also supports Double Precision Floating Point (DPFP) for workloads that require it.

Memory:

effective memory speed 28000 MHz
maximum memory bandwidth 896 GB/s
VRAM 16GB
GDDR version GDDR7
memory bus width 256-bit
Supports ECC memory ✓

The card is equipped with 16GB of GDDR7 VRAM running across a 256-bit memory bus at an effective speed of 28,000 MHz, resulting in a maximum memory bandwidth of 896 GB/s. ECC memory support is also included, which helps detect and correct memory errors during operation.

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 RTX 5070 Ti Star Nox OC supports DirectX 12 Ultimate, OpenGL 4.6, and OpenCL 3, covering a broad range of graphics and compute workloads. 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 featured 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 provides a total of four video outputs: one HDMI 2.1b port and three DisplayPort connections. There are no USB-C, DVI, or mini DisplayPort outputs on this model.

General info:

GPU architecture Blackwell
Thermal Design Power (TDP) 350W
PCI Express (PCIe) version 5
semiconductor size 5 nm
number of transistors 45600 million
Has air-water cooling ✕
width 348 mm
height 155 mm

Built on the Blackwell architecture using a 5 nm fabrication process, the GPU integrates 45,600 million transistors and connects to the system via PCIe 5.0. It carries a rated TDP of 350W and relies on air cooling, as water cooling is not supported. The card measures 348 mm in width and 155 mm in height.

Final Verdict

The Galax GeForce RTX 5070 Ti Star Nox OC is a well-specified graphics card that brings together the Blackwell architecture, a substantial 45.28 TFLOPS of compute throughput, and 16GB of GDDR7 VRAM with 896 GB/s of memory bandwidth into a single card aimed at users with serious rendering, gaming, or compute demands. Its support for ray tracing, DLSS, ECC memory, and up to four simultaneous displays reflects a broad feature set that covers both creative and gaming workloads. Those with adequate power delivery and air-cooled builds will find it a capable and feature-complete option, though users with specific connectivity or thermal requirements should weigh the absence of USB-C output and liquid cooling support before committing. Overall, the RTX 5070 Ti Star Nox OC presents a technically capable package for users whose workloads can take full advantage of its memory capacity and compute headroom.