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Gainward GeForce RTX 4080 Super Phoenix specifications and in-depth review

Gainward GeForce RTX 4080 Super Phoenix

Manufacturer: Gainward

The Gainward GeForce RTX 4080 Super Phoenix is a high-tier graphics card based on NVIDIA's Ada Lovelace architecture, manufactured on a 5 nm process with 45,900 million transistors. It operates at a base clock of 2295 MHz, reaching a turbo frequency of 2550 MHz, and delivers a floating-point throughput of 52.22 TFLOPS alongside a pixel rate of 285.6 GPixel/s and a texture rate of 816 GTexels/s.

On the memory side, the card carries 16GB of GDDR6X across a 256-bit bus, with an effective memory speed of 23,000 MHz and a peak bandwidth of 736.3 GB/s. It supports DirectX 12 Ultimate, OpenGL 4.6, OpenCL 3, ray tracing, and DLSS, while connectivity is handled through one HDMI 2.1a port and three DisplayPort outputs, supporting up to four displays simultaneously. The card has a rated TDP of 320W, measures 328.9 mm in length and 131.1 mm in height, and includes Intel Resizable BAR support along with RGB lighting.

Pros
  • With 16GB of GDDR6X memory on a 256-bit bus, there is a substantial amount of VRAM available for demanding rendering and compute workloads
  • A boost clock of 2550 MHz combined with 10,240 shading units and 52.22 TFLOPS of floating-point throughput indicates strong computational throughput for graphics-intensive tasks
  • Three DisplayPort outputs alongside one HDMI 2.1a port allow up to four displays to be connected simultaneously, offering solid multi-monitor flexibility
  • Support for ray tracing, DLSS, DirectX 12 Ultimate, and stereoscopic 3D covers a wide range of modern rendering features in a single card
  • Intel Resizable BAR support enables the CPU to access the full GPU frame buffer at once, which can improve frame delivery in compatible systems
  • ECC memory support adds data integrity protection, making the card more suitable for workloads where memory accuracy matters
Cons
  • A TDP of 320W places significant demands on system power delivery and case airflow, requiring careful planning around power supply capacity and thermal management
  • The card measures 328.9 mm in length, which may not fit in smaller or mid-tower cases without compatibility checks
  • There is no USB-C output, limiting direct connectivity to monitors or devices that rely on that interface
  • Water cooling is not supported on this model, so thermal management depends entirely on the air cooling solution provided
  • XeSS (XMX) is not supported, narrowing upscaling options to DLSS only
Who is this for?

This card is well-suited for users who run demanding rendering and compute workloads that benefit from 16GB of GDDR6X memory and a peak floating-point throughput of 52.22 TFLOPS. The combination of ray tracing, DLSS, and DirectX 12 Ultimate support makes it a strong fit for those engaged in high-fidelity real-time graphics or content creation pipelines. The four-display output capability and ECC memory support also make it a reasonable choice for professionals working in multi-monitor production environments where data integrity is a consideration.

Who is this NOT for?

Users with space-constrained builds may find the 328.9 mm card length difficult to accommodate, making it a poor match for compact or small form-factor cases. The 320W TDP demands a well-ventilated enclosure and a robust power supply, so those with thermally limited or lower-wattage systems are likely to encounter compatibility issues. Additionally, users who rely on USB-C display connectivity or prefer water-cooling solutions will find neither option available on this model.

Performance:

GPU clock speed 2295 MHz
GPU turbo 2550 MHz
pixel rate 285.6 GPixel/s
floating-point performance 52.22 TFLOPS
texture rate 816 GTexels/s
GPU memory speed 1438 MHz
shading units 10240
texture mapping units (TMUs) 320
render output units (ROPs) 112
Has Double Precision Floating Point (DPFP) ✓

The Performance section of this card centers on a base GPU clock of 2295 MHz that boosts up to 2550 MHz, paired with a floating-point throughput of 52.22 TFLOPS and a texture rate of 816 GTexels/s. The GPU memory runs at 1438 MHz, while the pixel rate reaches 285.6 GPixel/s. Rounding out the shader pipeline are 10,240 shading units, 320 texture mapping units, and 112 render output units, with Double Precision Floating Point support also confirmed.

Memory:

effective memory speed 23000 MHz
maximum memory bandwidth 736.3 GB/s
VRAM 16GB
GDDR version GDDR6X
memory bus width 256-bit
Supports ECC memory ✓

This card is equipped with 16GB of GDDR6X memory running at an effective speed of 23,000 MHz across a 256-bit bus, yielding a maximum memory bandwidth of 736.3 GB/s. ECC memory support is also present, adding a layer of data integrity for workloads that require it.

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

On the features side, the card 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 XeSS (XMX) is not present. Multi-display technology is included, allowing up to four simultaneous displays, and stereoscopic 3D is also supported. Intel Resizable BAR is available for CPU-to-GPU data throughput optimization, LHR is not active on this card, and RGB lighting is built in.

Ports:

has an HDMI output ✓
HDMI ports 1
HDMI version HDMI 2.1a
DisplayPort outputs 3
USB-C ports 0
DVI outputs 0
mini DisplayPort outputs 0

The card's output configuration consists of one HDMI 2.1a port and three DisplayPort outputs, offering a straightforward but capable set of display connections. There are no USB-C, DVI, or mini DisplayPort outputs present on this model.

General info:

GPU architecture Ada Lovelace
Thermal Design Power (TDP) 320W
PCI Express (PCIe) version 4
semiconductor size 5 nm
number of transistors 45900 million
Has air-water cooling ✕
width 328.9 mm
height 131.1 mm

This card is built on the Ada Lovelace architecture, fabricated using a 5 nm process and packing 45,900 million transistors onto the die. It connects via PCIe 4 and carries a rated TDP of 320W, relying solely on air cooling with no water-cooling option included. Physically, the card measures 328.9 mm in width and 131.1 mm in height.

Final Verdict

The Gainward GeForce RTX 4080 Super Phoenix is a well-specified graphics card that brings together a strong set of technical credentials under the Ada Lovelace architecture, most notably its 16GB of GDDR6X memory paired with 52.22 TFLOPS of floating-point throughput, which positions it firmly within demanding rendering and professional compute use cases. Support for ray tracing, DLSS, DirectX 12 Ultimate, and ECC memory broadens its appeal across both creative and workstation-oriented workflows, while the four-display output configuration adds practical flexibility for multi-monitor setups. Prospective users should weigh the 320W power requirement and 328.9 mm card length against their system's capabilities before committing, as these factors will determine how seamlessly the card integrates into a given build. For those with compatible systems, it represents a technically complete and feature-rich option within its product tier.