Gainward GeForce RTX 5080 Phoenix GS

Name: Gainward GeForce RTX 5080 Phoenix GS
Brand: Gainward
SKU: 5712

Manufacturer: Gainward

The Gainward GeForce RTX 5080 Phoenix GS is a desktop graphics card based on NVIDIA's Blackwell architecture, manufactured on a 5 nm process node with 45,600 million transistors. It operates at a base clock of 2295 MHz and reaches a boost frequency of 2700 MHz, while drawing up to 360W under full load. The card measures 331.9 mm in length and 133.1 mm in height, and includes RGB lighting along with support for up to four simultaneous displays.

On the memory side, the RTX 5080 Phoenix GS is equipped with 16GB of GDDR7 VRAM running across a 256-bit bus at an effective speed of 30,000 MHz, delivering a peak bandwidth of 960 GB/s. Compute performance is rated at 58.06 TFLOPS, backed by 10,752 shading units, 336 texture mapping units, and 112 ROPs. The card supports DirectX 12 Ultimate, OpenGL 4.6, OpenCL 3, ray tracing, DLSS, and Intel Resizable BAR. Connectivity includes three DisplayPort outputs and one HDMI 2.1b port, with the card connecting to the host system via PCIe 5.

Pros

Supports up to four simultaneous displays, offering flexibility for multi-monitor setups
16GB of GDDR7 VRAM with a 960 GB/s bandwidth ceiling gives substantial headroom for memory-intensive workloads
DLSS and ray tracing support are both present, enabling access to modern rendering features
ECC memory support adds a layer of data integrity for error-sensitive tasks
Intel Resizable BAR is included, allowing the CPU to access the full GPU frame buffer more efficiently
RGB lighting is built in, providing visual customization options for open-chassis builds

Cons

A 360W TDP places significant demands on system power delivery and case airflow
Air-water hybrid cooling is not supported, limiting thermal management to air cooling only
The card's 331.9 mm length may not fit in smaller or compact PC cases
Only one HDMI port is available, with no USB-C or DVI outputs, which may not suit all display configurations

Who is this for?

This card is well-suited to users running demanding rendering and compute workloads, given its 58.06 TFLOPS of floating-point performance, ECC memory support, and GDDR7 VRAM with 960 GB/s of bandwidth. Enthusiast-level PC builders who want access to ray tracing and DLSS in modern titles will find the feature set comprehensive, and those managing multi-monitor setups of up to four displays will benefit from the combination of three DisplayPort and one HDMI 2.1b output. Intel Resizable BAR support further makes it relevant for systems built around compatible platforms.

Who is this NOT for?

Users working within space-constrained builds should be cautious, as the card's 331.9 mm length may not clear smaller mid-tower or mini-ITX enclosures. The 360W TDP also makes it a poor fit for systems with modest power supplies or limited case airflow, since it demands robust cooling infrastructure that the card itself does not provide beyond standard air cooling. Additionally, users whose display setup relies on USB-C or DVI connectivity will find no native support for those output types on this card.

Performance:

GPU clock speed	2295 MHz
GPU turbo	2700 MHz
pixel rate	302.4 GPixel/s
floating-point performance	58.06 TFLOPS
texture rate	907.2 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 Performance section of the Gainward GeForce RTX 5080 Phoenix GS reflects a substantial compute configuration, with a base GPU clock of 2295 MHz that boosts up to 2700 MHz under load. Floating-point performance is rated at 58.06 TFLOPS, supported by 10,752 shading units, 336 texture mapping units, and a texture rate of 907.2 GTexels/s. The card's 112 render output units contribute to a pixel rate of 302.4 GPixel/s, while the GPU memory runs at 1875 MHz. Double Precision Floating Point (DPFP) is also supported, adding relevance for workloads that benefit from higher numerical 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 RTX 5080 Phoenix GS is equipped with 16GB of GDDR7 VRAM running across a 256-bit memory bus at an effective speed of 30,000 MHz, resulting in a maximum memory bandwidth of 960 GB/s. ECC memory support is included, which helps maintain data integrity in error-sensitive workloads.

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 Phoenix GS 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. The card includes Intel Resizable BAR for improved CPU-to-GPU data access, and features RGB lighting. XeSS (XMX) and LHR are not present on this model.

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 RTX 5080 Phoenix GS offers a total of four video outputs, consisting of three DisplayPort connectors and one HDMI 2.1b port. 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	331.9 mm
height	133.1 mm

The RTX 5080 Phoenix GS is built on the Blackwell architecture, fabricated using a 5 nm process and integrating 45,600 million transistors. It connects to the host system via PCIe 5 and carries a Thermal Design Power rating of 360W. The card measures 331.9 mm in width and 133.1 mm in height, and relies solely on air cooling, as liquid or hybrid air-water cooling is not supported.

Final Verdict

The Gainward GeForce RTX 5080 Phoenix GS is a high-specification graphics card built around the Blackwell architecture, combining a dense 10,752-shader configuration with 16GB of GDDR7 VRAM at 960 GB/s bandwidth to address both graphically intensive and compute-oriented workloads. Ray tracing, DLSS, ECC memory, and support for four simultaneous displays round out a feature set that is clearly aimed at enthusiast desktop users who require both rendering capability and workstation-adjacent reliability. That said, its 360W power requirement and 331.9 mm footprint mean it demands a well-specced system to operate at its best, and prospective buyers should ensure their chassis and power supply are up to the task. For those whose setup can accommodate it, the RTX 5080 Phoenix GS represents a comprehensively equipped option within its product category.