Gainward GeForce RTX 5080 Phantom

Name: Gainward GeForce RTX 5080 Phantom
Brand: Gainward
SKU: 9023

Manufacturer: Gainward

The Gainward GeForce RTX 5080 Phantom is a desktop graphics card based on NVIDIA's Blackwell architecture, manufactured on a 5nm semiconductor process with 45,600 million transistors. It operates at a base clock of 2295 MHz, boosting up to 2617 MHz under load, and delivers 56.28 TFLOPS of floating-point performance alongside support for ray tracing and DLSS technology.

On the memory side, the card carries 16GB of GDDR7 VRAM across a 256-bit bus, reaching an effective speed of 30,000 MHz and a maximum bandwidth of 960 GB/s. Connectivity includes one HDMI 2.1b port and three DisplayPort outputs for a total of up to four simultaneous displays, while the card connects to the system via PCIe 5.0 and draws up to 360W as specified by its thermal design power rating. It measures 331.9 mm in length and 145.6 mm in height, and supports DirectX 12 Ultimate, OpenGL 4.6, and OpenCL 3.

Pros

Supports up to four simultaneous displays through a combination of three DisplayPort outputs and one HDMI 2.1b port
ECC memory support adds a layer of data integrity for compute-oriented workloads
Intel Resizable BAR is included, allowing the CPU to access the full VRAM pool rather than in smaller segments
Ray tracing and DLSS are both supported, enabling advanced rendering and upscaling capabilities
The 256-bit memory bus paired with GDDR7 delivers a maximum bandwidth of 960 GB/s, which benefits memory-intensive workloads
Double Precision Floating Point (DPFP) support broadens the card's usability beyond gaming into compute tasks

Cons

A 360W TDP places significant demands on the power supply and case airflow
The card does not include air-water cooling, so thermal management relies entirely on the installed air cooler
With no USB-C output, connectivity options are limited for monitors or displays that rely on that interface
At 331.9 mm in length, physical fitment may be a concern in smaller or mid-tower cases
The absence of RGB lighting may be a drawback for users building systems with a coordinated lighting setup

Who is this for?

This card is well-suited for users running demanding rendering and compute workloads that benefit from high memory bandwidth, DPFP support, and ECC memory — such as 3D artists, simulation engineers, or developers working with GPU-accelerated applications. Gamers who need to drive multiple high-resolution displays simultaneously will also find the four-output configuration and DLSS support practical, and the PCIe 5.0 interface makes it a natural fit for modern high-throughput platform builds.

Who is this NOT for?

Users working in space-constrained or small-form-factor builds may struggle to accommodate the card's 331.9 mm length, and the 360W TDP requires a robust power supply and well-ventilated case that compact systems often cannot provide. Those who rely on USB-C display connectivity will find no such output available, and users looking for a passively cooled or liquid-cooled solution should note that the card ships without air-water cooling support.

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 Gainward GeForce RTX 5080 Phantom runs at a base GPU clock of 2295 MHz, scaling up to 2617 MHz in turbo mode, and delivers 56.28 TFLOPS of floating-point performance alongside a pixel rate of 293.1 GPixel/s and a texture rate of 879.3 GTexels/s. Underpinning these figures are 10,752 shading units, 336 texture mapping units, and 112 render output units, while a GPU memory speed of 1875 MHz contributes to the overall throughput. The card also supports Double Precision Floating Point (DPFP), extending its suitability to workloads that require 64-bit compute precision.

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 is 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, which helps detect and correct memory errors in workloads where data integrity is a priority.

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 Gainward GeForce RTX 5080 Phantom 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, while stereoscopic 3D and multi-display technology are also available, with the card able to drive up to four displays simultaneously. Intel Resizable BAR is included, whereas XeSS (XMX) and LHR are not supported. The card does not feature 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

The card's output configuration consists of one HDMI 2.1b port and three DisplayPort outputs, offering a total of four video outputs for multi-monitor setups. There are no USB-C, DVI, or mini DisplayPort outputs present on this model.

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	331.9 mm
height	145.6 mm

Built on the Blackwell architecture and fabricated using a 5nm process node, the card integrates 45,600 million transistors and connects to the system via PCI Express 5.0. It carries a Thermal Design Power of 360W and does not include air-water cooling. Physically, it measures 331.9 mm in width and 145.6 mm in height.

Final Verdict

The Gainward GeForce RTX 5080 Phantom is a technically well-specified graphics card that brings together the Blackwell architecture, 960 GB/s of memory bandwidth via 16GB of GDDR7, and a broad feature set including ray tracing, DLSS, and DPFP support — making it a credible option for both demanding visual workloads and GPU compute tasks. Its four-display output support and ECC memory capability give it a degree of versatility that extends beyond pure gaming, though its 360W TDP, 331.9 mm length, and absence of USB-C outputs mean it is best suited to full-sized systems with capable power delivery and airflow. For users whose platform can accommodate its physical and power requirements, the RTX 5080 Phantom presents a comprehensive set of specifications that align well with high-demand use cases.