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Inno3D GeForce RTX 4070 X3 OC GDDR6 specifications and in-depth review

Inno3D GeForce RTX 4070 X3 OC GDDR6

Manufacturer: Inno3D

The Inno3D GeForce RTX 4070 X3 OC GDDR6 is a desktop graphics card based on NVIDIA's Ada Lovelace architecture, fabricated on a 5 nm process with 35,800 million transistors. It features a base clock of 1920 MHz and a boost clock of 2505 MHz, alongside support for hardware ray tracing and DLSS, making it a technically capable option in the mid-to-high range of the current GPU generation. The card does not include RGB lighting and measures 297 mm in length and 118 mm in height, giving a clear picture of its physical footprint.

On the memory side, the card is equipped with 12 GB of GDDR6 VRAM across a 192-bit bus, delivering a maximum bandwidth of 480 GB/s at an effective memory speed of 20,000 MHz, with ECC memory support included. Rendering throughput reaches 160.3 GPixel/s and 460.9 GTexels/s, backed by 5,888 shading units, 184 TMUs, and 64 ROPs. Display connectivity covers up to four outputs simultaneously via one HDMI 2.1a port and three DisplayPort outputs, with no USB-C or DVI connections present. The card has a 200W TDP, uses a PCIe 4.0 interface, and supports Intel Resizable BAR along with DirectX 12 Ultimate and OpenGL 4.6.

Pros
  • Supports up to four simultaneous display outputs through a combination of one HDMI 2.1a port and three DisplayPort connections
  • ECC memory support adds a degree of reliability for workloads where data integrity matters
  • Intel Resizable BAR is included, allowing the CPU broader access to GPU memory during operation
  • Double Precision Floating Point (DPFP) support extends the card's utility to compute-oriented tasks beyond standard rendering
  • Hardware ray tracing and DLSS are both supported, enabling advanced rendering and upscaling capabilities
  • Built on a 5 nm process with 35,800 million transistors, reflecting a modern and dense chip design
Cons
  • No USB-C, DVI, or mini DisplayPort outputs are available, limiting flexibility for certain display setups
  • XeSS (XMX) is not supported, removing one upscaling option from the feature set
  • The card does not include RGB lighting, which may matter to users building visually themed systems
  • Air-water hybrid cooling is not available, restricting thermal management to air cooling only
  • At 297 mm in length and 118 mm in height, the card has a sizeable footprint that may not fit in compact cases
Who is this for?

This card is well-suited to users who run ray tracing and DLSS-enabled workloads, as both features are natively supported and can be leveraged in compatible applications. The 12 GB of GDDR6 VRAM combined with 480 GB/s of memory bandwidth makes it a reasonable fit for content creators and compute-focused users who benefit from ECC memory support and Double Precision Floating Point capabilities. Those running multi-monitor setups of up to four displays will find the port configuration practical, particularly with HDMI 2.1a and three DisplayPort outputs covering a wide range of display types.

Who is this NOT for?

Users working in very compact or small form factor builds may find the 297 mm length and 118 mm height difficult to accommodate, as the card's physical dimensions demand a reasonably spacious case. Those who require advanced thermal management options will note the absence of air-water hybrid cooling, which limits flexibility in thermally constrained or high-ambient-temperature environments. Additionally, users who rely on XeSS upscaling or need USB-C display connectivity will find neither feature available on this card, which could be a limitation depending on their display hardware or software ecosystem.

Performance:

GPU clock speed 1920 MHz
GPU turbo 2505 MHz
pixel rate 160.3 GPixel/s
floating-point performance 29.5 TFLOPS
texture rate 460.9 GTexels/s
GPU memory speed 2500 MHz
shading units 5888
texture mapping units (TMUs) 184
render output units (ROPs) 64
Has Double Precision Floating Point (DPFP) ✓

The Performance section of this graphics card centers on a base GPU clock of 1920 MHz that scales up to a boost clock of 2505 MHz, supported by a GPU memory speed of 2500 MHz. Rendering throughput is handled by 5,888 shading units, 184 texture mapping units, and 64 render output units, yielding a texture rate of 460.9 GTexels/s and a pixel rate of 160.3 GPixel/s. Floating-point performance reaches 29.5 TFLOPS, and the card also includes Double Precision Floating Point (DPFP) support, which extends its utility beyond standard rendering workloads.

Memory:

effective memory speed 20000 MHz
maximum memory bandwidth 480 GB/s
VRAM 12GB
GDDR version GDDR6
memory bus width 192-bit
Supports ECC memory ✓

This graphics card is equipped with 12 GB of GDDR6 VRAM running at an effective memory speed of 20,000 MHz across a 192-bit bus, delivering a maximum memory bandwidth of 480 GB/s. The use of a 192-bit interface keeps data throughput consistent with the overall memory configuration, while ECC memory support is included, adding a layer of reliability for workloads where memory integrity is a consideration.

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 card supports DirectX 12 Ultimate, OpenGL 4.6, and OpenCL 3, covering a broad range of graphics and compute APIs. Hardware ray tracing and DLSS are both present, while XeSS (XMX) is not supported. Multi-display technology is included with support for up to four simultaneous outputs, and stereoscopic 3D is also available. On the system side, Intel Resizable BAR is supported, which can help improve data transfer efficiency between the CPU and GPU. The card does not feature LHR or RGB lighting.

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, providing a total of four 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) 200W
PCI Express (PCIe) version 4
semiconductor size 5 nm
number of transistors 35800 million
Has air-water cooling ✕
width 297 mm
height 118 mm

This card is built on the Ada Lovelace architecture, using a 5 nm manufacturing process that integrates 35,800 million transistors onto the die. It connects via a PCIe 4.0 interface and carries a Thermal Design Power of 200W. Cooling is handled without an air-water hybrid solution, as that option is not included. Physically, the card measures 297 mm in width and 118 mm in height, which gives a reliable reference for case compatibility planning.

Final Verdict

The Inno3D GeForce RTX 4070 X3 OC GDDR6 is a well-specified graphics card that brings together a modern Ada Lovelace architecture, hardware ray tracing, DLSS support, and ECC memory in a single package suited to both rendering and compute-adjacent use cases. Its 12 GB of GDDR6 VRAM with 480 GB/s bandwidth gives it a solid foundation for users handling memory-intensive tasks, while the four-display output capability and HDMI 2.1a connectivity add practical versatility for multi-monitor workflows. The card's physical size and the absence of hybrid cooling or XeSS support do set some boundaries around where it fits best, but within those boundaries it represents a technically coherent and capable option for users whose workloads align with its feature set.