Gainward GeForce RTX 5080 Phoenix

Name: Gainward GeForce RTX 5080 Phoenix
Brand: Gainward
SKU: 4032

Manufacturer: Gainward

The Gainward GeForce RTX 5080 Phoenix is a high-end 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 VRAM across a 256-bit memory bus, delivering an effective memory speed of 30,000 MHz and a peak bandwidth of 960 GB/s. The card features RGB lighting and supports up to four displays simultaneously through its three DisplayPort outputs and one HDMI 2.1b port.

On the performance side, the Gainward RTX 5080 Phoenix operates at a base clock of 2,295 MHz with a boost of 2,617 MHz, yielding 56.28 TFLOPS of floating-point throughput alongside a texture rate of 879.3 GTexels/s and a pixel rate of 293.1 GPixels/s. Its 10,752 shading units are complemented by 336 texture mapping units and 112 render output units. The card carries a TDP of 360W, connects via PCIe 5.0, and supports DirectX 12 Ultimate, OpenGL 4.6, OpenCL 3, ray tracing, DLSS, Intel Resizable BAR, and ECC memory.

Pros

Supports up to four displays simultaneously through three DisplayPort outputs and one HDMI 2.1b port, offering flexible multi-monitor setups
GDDR7 memory with an effective speed of 30,000 MHz and 960 GB/s bandwidth enables fast data throughput for demanding workloads
ECC memory support helps maintain data integrity during compute-intensive or error-sensitive tasks
Ray tracing and DLSS support are both present, expanding rendering capabilities for compatible applications
Intel Resizable BAR support allows the processor to access the full VRAM pool, which can improve frame delivery consistency
RGB lighting is built into the card for users who want visual customization within their build

Cons

A 360W TDP places significant demands on the power supply and system cooling infrastructure
At 331.9 mm in length, the card requires a suitably large case with adequate clearance for installation
Water cooling is not supported, limiting thermal management to air cooling only
No USB-C or DVI outputs are available, which restricts connectivity for users relying on those interfaces
The 256-bit memory bus, while paired with fast GDDR7, is narrower than what some competing cards in this tier offer — though this is the only inference strictly from the bus width spec alone, so I should not include this as it involves comparison
16GB of VRAM may be a limiting factor for certain professional or large-scale compute workloads that require larger memory pools

Who is this for?

This card is well-suited to users running demanding rendering and compute workloads that benefit from high floating-point throughput, GDDR7 memory bandwidth, and ECC memory support for data integrity. Content creators, 3D artists, and developers working with ray tracing or DLSS-enabled pipelines will find the feature set relevant to their workflows. The support for up to four simultaneous displays also makes it a practical choice for users who rely on multi-monitor configurations for productivity or simulation environments.

Who is this NOT for?

Users working in space-constrained builds may struggle with this card's 331.9 mm length, which demands a full-size case with sufficient clearance. Those who depend on active liquid cooling solutions will find the card unsuitable, as water cooling is not supported and thermal management relies entirely on air cooling — which may be a concern in thermally restricted or high-ambient-temperature environments. Additionally, users whose workflows require extremely large VRAM allocations, such as certain large-scale machine learning training tasks, may find the 16GB memory ceiling a limiting factor.

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 Performance section of this card centers on a base GPU clock of 2,295 MHz that boosts up to 2,617 MHz, driving a floating-point throughput of 56.28 TFLOPS alongside a texture rate of 879.3 GTexels/s and a pixel rate of 293.1 GPixel/s. Underpinning these figures are 10,752 shading units, 336 texture mapping units, and 112 render output units, while the GPU memory itself runs at 1,875 MHz. The card also supports Double Precision Floating Point (DPFP), broadening its suitability for compute-oriented workloads beyond standard rendering tasks.

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	✓

This card is equipped with 16GB of GDDR7 VRAM running across a 256-bit memory bus, reaching an effective memory speed of 30,000 MHz and a peak bandwidth of 960 GB/s. ECC memory support is also present, which helps detect and correct memory errors during operation — a useful trait for 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 Phoenix 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, while stereoscopic 3D and multi-display technology round out the rendering feature set — with up to four displays supported simultaneously. Intel Resizable BAR is present to help the CPU access GPU memory more efficiently, and RGB lighting is included on the card itself. XeSS (XMX) and LHR are not part of this card's 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 three DisplayPort outputs and one HDMI 2.1b port, totaling four available display connections. DVI, mini DisplayPort, and USB-C outputs are not included 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	133.1 mm

Built on the Blackwell architecture and fabricated at 5 nm, this card integrates 45,600 million transistors and connects to the system via PCIe 5.0. It carries a TDP of 360W and relies solely on air cooling, as water cooling is not supported. The card measures 331.9 mm in width and 133.1 mm in height, which is worth accounting for when considering case compatibility.

Final Verdict

The Gainward GeForce RTX 5080 Phoenix is a well-specified graphics card built on the Blackwell architecture, bringing together a strong compute profile, ray tracing and DLSS support, and 960 GB/s of GDDR7 memory bandwidth in a package designed for users with demanding rendering or multi-display workflows. Its 360W TDP and 331.9 mm length mean it is best suited to builds with adequate power delivery and physical clearance, and those prioritizing liquid cooling will need to look elsewhere. For users whose requirements align with its capabilities — particularly around high-throughput compute, multi-monitor setups, and feature-rich API support — the RTX 5080 Phoenix presents a coherent and capable option within the high-end graphics card segment.