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Inno3D GeForce RTX 5070 X3 OC specifications and in-depth review

Inno3D GeForce RTX 5070 X3 OC

Manufacturer: Inno3D

The Inno3D GeForce RTX 5070 X3 OC is a graphics card based on NVIDIA's Blackwell architecture, manufactured on a 5 nm process and equipped with 6144 shading units. It carries a 250W TDP and measures 300 mm in length and 116 mm in height, fitting the profile of a substantial triple-fan cooled board with RGB lighting included.

On the memory side, the card uses 12GB of GDDR7 across a 192-bit bus, reaching an effective memory speed of 28000 MHz and a peak bandwidth of 672 GB/s. Compute performance is rated at 31.24 TFLOPS, with a texture rate of 488.1 GTexels/s and a pixel rate of 203.4 GPixel/s. The card supports DirectX 12 Ultimate, OpenGL 4.6, OpenCL 3, ray tracing, DLSS, and Intel Resizable BAR, while connectivity is handled through one HDMI 2.1b port and three DisplayPort outputs, supporting up to four displays simultaneously over PCIe 5.

Pros
  • Supports up to four displays simultaneously, making it suitable for multi-monitor setups
  • GDDR7 memory with a 672 GB/s bandwidth ceiling and an effective speed of 28000 MHz enables fast data throughput for demanding workloads
  • Ray tracing and DLSS support are both present, expanding options for compatible rendering workloads
  • ECC memory support adds a layer of data integrity for compute-sensitive tasks
  • Intel Resizable BAR support allows the CPU broader access to GPU memory, which can benefit certain workloads
  • RGB lighting is included for users who prioritise case aesthetics
Cons
  • The 192-bit memory bus is narrower than what some higher-tier cards in this category offer, which limits maximum bandwidth headroom
  • No USB-C output is available, which may be limiting for users with USB-C monitors or displays
  • A 250W TDP places meaningful demands on system power delivery and case airflow
  • At 300 mm in length, the card may not fit in smaller or compact enclosures
  • Water or hybrid air-water cooling is not supported, leaving users reliant solely on the air-cooling solution
Who is this for?

This card is well-suited to users running demanding rendering and compute workloads that benefit from GDDR7 memory, high bandwidth, and DLSS support, as well as those who need to connect up to four displays at once for multi-monitor configurations. ECC memory support also makes it a reasonable fit for workloads where data integrity matters, and the Blackwell architecture with PCIe 5 connectivity ensures it slots into modern high-throughput system builds without bottlenecking.

Who is this NOT for?

Users working within compact or small-form-factor builds may find the 300 mm length a practical obstacle, and the 250W TDP demands a well-ventilated case with a capable power supply, making it poorly matched for constrained or low-power system configurations. Those who rely on USB-C display outputs or require water-cooling compatibility will also find this card lacking, as neither is supported in this model.

Performance:

GPU clock speed 2325 MHz
GPU turbo 2542 MHz
pixel rate 203.4 GPixel/s
floating-point performance 31.24 TFLOPS
texture rate 488.1 GTexels/s
GPU memory speed 1750 MHz
shading units 6144
texture mapping units (TMUs) 192
render output units (ROPs) 80
Has Double Precision Floating Point (DPFP) ✓

The Inno3D GeForce RTX 5070 X3 OC runs at a base GPU clock of 2325 MHz, boosting up to 2542 MHz under load, while its 6144 shading units and 192 texture mapping units contribute to a texture rate of 488.1 GTexels/s and a pixel rate of 203.4 GPixel/s. Floating-point performance is rated at 31.24 TFLOPS, and the card includes 80 render output units alongside a GPU memory speed of 1750 MHz. Double Precision Floating Point (DPFP) is supported, broadening its suitability for compute-oriented workloads beyond standard rendering tasks.

Memory:

effective memory speed 28000 MHz
maximum memory bandwidth 672 GB/s
VRAM 12GB
GDDR version GDDR7
memory bus width 192-bit
Supports ECC memory ✓

The card is equipped with 12GB of GDDR7 VRAM running across a 192-bit memory bus, reaching an effective memory speed of 28000 MHz and a peak bandwidth of 672 GB/s. ECC memory support is included, which helps ensure data integrity in workloads where memory error correction 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 Inno3D GeForce RTX 5070 X3 OC 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 stereoscopic 3D and multi-display technology are also on board, with the card able to drive up to four displays simultaneously. Intel Resizable BAR is supported, whereas XeSS (XMX) and LHR are not present. RGB lighting is included, and the card does not carry a Lite Hash Rate limiter.

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 one HDMI 2.1b port and three DisplayPort outputs, totalling four video outputs. There are no USB-C, DVI, or mini DisplayPort connections present on this model.

General info:

GPU architecture Blackwell
Thermal Design Power (TDP) 250W
PCI Express (PCIe) version 5
semiconductor size 5 nm
number of transistors 31100 million
Has air-water cooling ✕
width 300 mm
height 116 mm

The Inno3D GeForce RTX 5070 X3 OC is built on the Blackwell architecture, fabricated using a 5 nm process and housing 31,100 million transistors. It connects via PCIe 5 and carries a thermal design power of 250W. The card measures 300 mm in width and 116 mm in height, and relies on air cooling rather than a liquid cooling solution. Water or hybrid air-water cooling is not supported on this model.

Final Verdict

The Inno3D GeForce RTX 5070 X3 OC is a well-specified graphics card that brings together the Blackwell architecture, DLSS support, ray tracing capability, and 12GB of GDDR7 memory with 672 GB/s of bandwidth into a package suited for demanding rendering and multi-display workloads. Its PCIe 5 interface, ECC memory support, and four-display output capability give it a degree of versatility that extends beyond straightforward gaming use. That said, the 250W TDP and 300 mm length mean it is best matched to full-sized systems with solid power and thermal headroom, and the absence of USB-C outputs or water-cooling support will be a genuine constraint for some users. Taken as a whole, this card makes a strong case for users building capable, modern systems where bandwidth, compute throughput, and display flexibility are priorities.