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Inno3D GeForce RTX 4080 Super X3 OC specifications and in-depth review

Inno3D GeForce RTX 4080 Super X3 OC

Manufacturer: Inno3D

The Inno3D GeForce RTX 4080 Super X3 OC is a desktop 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 and reaches a boost frequency of 2580 MHz, delivering 52.84 TFLOPS of floating-point performance alongside a pixel rate of 289 GPixel/s and a texture rate of 825.6 GTexels/s.

On the memory side, the card carries 16GB of GDDR6X across a 256-bit bus, achieving an effective speed of 23,000 MHz and a maximum bandwidth of 736.3 GB/s. It supports DirectX 12 Ultimate, OpenGL 4.6, OpenCL 3, ray tracing, and DLSS, and connects to up to four displays through one HDMI 2.1a port and three DisplayPort outputs. The card has a rated TDP of 320W, measures 328 mm × 137 mm, and includes Intel Resizable BAR support along with RGB lighting.

Pros
  • Supports up to four simultaneous displays through a combination of one HDMI 2.1a port and three DisplayPort outputs
  • ECC memory support adds a degree of data integrity protection useful in compute-oriented workloads
  • DLSS and ray tracing are both supported, expanding rendering options for compatible applications
  • Intel Resizable BAR support allows the processor to access the full 16GB VRAM pool simultaneously, which can improve frame delivery in supported titles
  • RGB lighting is built in, offering visual customization without requiring additional hardware
  • The 256-bit memory bus paired with 736.3 GB/s of bandwidth provides substantial throughput for memory-intensive workloads
Cons
  • A 320W TDP places significant demands on the system power supply and case airflow
  • No USB-C output is available, limiting direct connectivity to certain monitors and capture devices
  • Liquid or hybrid air-water cooling is not supported, leaving thermal management entirely dependent on the included air cooler
  • At 328 mm in length, the card requires a spacious case with adequate clearance for installation
Who is this for?

This card is well matched to users who run demanding rendering and compute workloads alongside gaming, given its 52.84 TFLOPS of floating-point output, DPFP support, and ECC memory — features that extend its usefulness beyond pure gaming into tasks like 3D rendering or GPU-accelerated computation. Those who rely on multi-display setups will find the four-output configuration with HDMI 2.1a and three DisplayPort connections genuinely practical. DLSS and ray tracing support also make it a strong fit for users working within applications and game engines that take advantage of those capabilities.

Who is this NOT for?

Users working in compact or small-form-factor builds will likely find the 328 mm card length and 320W TDP difficult to accommodate, as both place real constraints on case selection and power supply requirements. The absence of a USB-C output makes it a poor fit for anyone who relies on that connection type for monitors or direct device output. Additionally, those looking for a card with integrated liquid or hybrid cooling will need to look elsewhere, since thermal management here is handled entirely by air cooling.

Performance:

GPU clock speed 2295 MHz
GPU turbo 2580 MHz
pixel rate 289 GPixel/s
floating-point performance 52.84 TFLOPS
texture rate 825.6 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 2580 MHz, feeding into a floating-point output of 52.84 TFLOPS and a texture rate of 825.6 GTexels/s. Rasterization throughput is handled by 10,240 shading units, 320 texture mapping units, and 112 render output units, together yielding a pixel rate of 289 GPixel/s. GPU memory operates at 1438 MHz, and the card includes support for Double Precision Floating Point (DPFP), broadening its suitability for compute-oriented workloads alongside graphics tasks.

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 video memory running across a 256-bit bus, reaching an effective speed of 23,000 MHz and delivering a maximum memory bandwidth of 736.3 GB/s. ECC memory support is also included, adding a layer of data integrity protection that can be relevant in precision-sensitive or compute 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

On the software and feature side, 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, while XeSS (XMX) is not present. Multi-display technology is available with support for up to four simultaneous displays, and stereoscopic 3D is also included. Memory bandwidth can be further utilized through Intel Resizable BAR support, and Lite Hash Rate (LHR) is not applied to this card. RGB lighting is built in, rounding out the feature set on the visual customization front.

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, giving a total of four available display connections. There are no USB-C, DVI, or mini DisplayPort outputs 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 mm
height 137 mm

This card is built on the Ada Lovelace architecture, fabricated on a 5 nm process with 45,900 million transistors, and connects to the motherboard via PCIe 4. It carries a Thermal Design Power rating of 320W and relies solely on air cooling, as liquid or hybrid air-water cooling is not supported. Physically, the card measures 328 mm in width and 137 mm in height.

Final Verdict

The Inno3D GeForce RTX 4080 Super X3 OC is a capable Ada Lovelace-based card that brings together a strong compute profile — including 52.84 TFLOPS, DPFP support, and ECC memory — with a practical feature set covering ray tracing, DLSS, and a four-display output configuration. Its 16GB of GDDR6X memory running at 736.3 GB/s of bandwidth gives it meaningful headroom for memory-intensive tasks, making it relevant not just for gaming but for GPU-accelerated workloads as well. Prospective buyers should be mindful of the 320W power draw, the 328 mm card length, and the absence of USB-C output, as these factors will influence build compatibility. Taken as a whole, it is a well-specified card suited to users who need both rendering versatility and multi-display flexibility within a system built to handle its footprint and power requirements.