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Galax GeForce RTX 5090 D 1-Click OC specifications and in-depth review

Galax GeForce RTX 5090 D 1-Click OC

Manufacturer: Galax

The Galax GeForce RTX 5090 D 1-Click OC is a high-end graphics card from Galax, based on NVIDIA's Blackwell architecture and manufactured on a 5nm process node. It carries a factory boost clock of 2407 MHz and ships with 32GB of GDDR7 video memory across a 512-bit memory bus, supporting a maximum bandwidth of 1792 GB/s. The card also features RGB lighting and supports up to four simultaneous displays.

On the performance side, the RTX 5090 D 1-Click OC delivers 104.8 TFLOPS of floating-point compute and a texture rate of 1637 GTexels/s, backed by 21,760 shading units and 680 texture mapping units. Its 512-bit memory bus width pairs with an effective memory speed of 28,000 MHz to sustain the card's bandwidth figures. Connectivity includes one HDMI 2.1b port and three DisplayPort outputs, while feature support covers DirectX 12 Ultimate, OpenGL 4.6, ray tracing, DLSS, and Intel Resizable BAR. The card draws up to 575W and connects via PCIe 5.0, measuring 337 mm in length and 151 mm in height.

Pros
  • Comes with 32GB of GDDR7 VRAM across a 512-bit bus, supporting a maximum bandwidth of 1792 GB/s which suits memory-intensive workloads
  • Supports ray tracing and DLSS, enabling more advanced rendering and upscaling capabilities
  • ECC memory support helps maintain data integrity during error-sensitive compute tasks
  • Can drive up to four displays simultaneously via one HDMI 2.1b port and three DisplayPort outputs
  • RGB lighting is built in, offering visual customization options
  • Intel Resizable BAR support allows the CPU broader access to GPU memory, which can improve data transfer efficiency
Cons
  • A TDP of 575W places significant demands on power supply capacity and system cooling
  • Does not include air-water cooling, so thermal management relies entirely on the card's own cooling solution
  • The card measures 337 mm in length and 151 mm in height, which may not fit in smaller or compact cases
  • No USB-C or DVI outputs are available, limiting compatibility with certain monitors or adapters
  • XeSS (XMX) is not supported, restricting use of that particular upscaling technology
Who is this for?

This card is well-matched for users running memory-intensive workloads such as high-resolution 3D rendering, large-scale simulation, or machine learning tasks, given its 32GB of GDDR7 VRAM, 1792 GB/s bandwidth, and ECC memory support. Its ray tracing and DLSS support also make it a solid fit for those working with real-time rendering pipelines or advanced visual content creation. Users who need to run multi-display setups of up to four screens will find the port configuration practical, and the PCIe 5.0 interface suits systems built around modern high-throughput platforms.

Who is this NOT for?

The card's 575W TDP makes it unsuitable for users without a high-capacity power supply and a well-ventilated full-size chassis, as the power and thermal demands are substantial. Its physical dimensions of 337 mm in length and 151 mm in height mean it will not fit in compact or small-form-factor cases, ruling it out for users building space-constrained systems. Additionally, users who rely on USB-C display connectivity or DVI outputs will find no support for either on this card, making it a poor match for setups dependent on those interface types.

Performance:

GPU clock speed 2017 MHz
GPU turbo 2407 MHz
pixel rate 423.6 GPixel/s
floating-point performance 104.8 TFLOPS
texture rate 1637 GTexels/s
GPU memory speed 1750 MHz
shading units 21760
texture mapping units (TMUs) 680
render output units (ROPs) 176
Has Double Precision Floating Point (DPFP) ✓

The Performance section of this card is defined by a base GPU clock of 2017 MHz that boosts up to 2407 MHz, alongside a floating-point throughput of 104.8 TFLOPS. It is equipped with 21,760 shading units, 680 texture mapping units, and 176 render output units, producing a texture rate of 1637 GTexels/s and a pixel rate of 423.6 GPixel/s. The GPU memory runs at 1750 MHz, and the card supports Double Precision Floating Point (DPFP), making it capable of handling workloads that require 64-bit compute precision.

Memory:

effective memory speed 28000 MHz
maximum memory bandwidth 1792 GB/s
VRAM 32GB
GDDR version GDDR7
memory bus width 512-bit
Supports ECC memory ✓

This card is equipped with 32GB of GDDR7 VRAM running across a 512-bit memory bus, achieving an effective memory speed of 28,000 MHz and a maximum memory bandwidth of 1792 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 card 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, as are stereoscopic 3D and multi-display technology with up to four displays simultaneously. Intel Resizable BAR is included for improved CPU-to-GPU data access, while LHR and XeSS (XMX) are not present on this card. RGB lighting is built in, rounding out the feature set.

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, providing a total of four display connections. There are no USB-C, DVI, or mini DisplayPort outputs on this card.

General info:

GPU architecture Blackwell
Thermal Design Power (TDP) 575W
PCI Express (PCIe) version 5
semiconductor size 5 nm
number of transistors 92200 million
Has air-water cooling ✕
width 337 mm
height 151 mm

Built on the Blackwell architecture and fabricated using a 5nm process node, this card integrates 92,200 million transistors and connects via PCIe 5.0. It carries a Thermal Design Power (TDP) of 575W and does not include air-water cooling. Physically, it measures 337 mm in width and 151 mm in height.

Final Verdict

The Galax GeForce RTX 5090 D 1-Click OC is a specification-dense graphics card built around NVIDIA's Blackwell architecture, and its most defining characteristic is its 32GB of GDDR7 VRAM paired with 1792 GB/s of memory bandwidth — a combination that positions it firmly within demanding rendering, compute, and multi-display workflows. Ray tracing, DLSS, ECC memory support, and PCIe 5.0 connectivity round out a feature set aimed at users with serious workload requirements. That said, its 575W power draw and large physical footprint mean it demands a purpose-built environment to operate properly. For users whose systems can accommodate those requirements, this card delivers a comprehensive and well-specified package across both graphics and compute use cases.

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