Asus Prime Radeon RX 9070 OC Edition specifications and in-depth review

Asus Prime Radeon RX 9070 OC Edition

Manufacturer: Asus

The Asus Prime Radeon RX 9070 OC Edition is a graphics card built around AMD's RDNA 4.0 architecture, manufactured on a 5nm process with 53.9 billion transistors. It ships with 16GB of GDDR6 memory across a 256-bit bus, reaching an effective memory speed of 20,000 MHz and a peak bandwidth of 644.6 GB/s. The card has a base GPU clock of 1330 MHz and a boost frequency of 2590 MHz, with a TDP rating of 220W.

On the feature side, the Asus Prime Radeon RX 9070 OC Edition supports DirectX 12 Ultimate and ray tracing, along with AMD FSR4 and AMD SAM. It offers OpenGL 4.6 and OpenCL 2.2 compatibility, and can drive up to four displays simultaneously through its three DisplayPort outputs and one HDMI 2.1b port. The card also includes Double Precision Floating Point support and ECC memory compatibility, with a PCIe 5.0 interface for system connectivity.

Pros
  • Supports up to four displays simultaneously through three DisplayPort and one HDMI 2.1b output
  • 16GB of GDDR6 VRAM with a 256-bit bus provides a substantial memory pool for demanding workloads
  • ECC memory support adds data integrity reliability for compute-oriented tasks
  • AMD FSR4 upscaling is included, offering a frame rate optimization option for compatible titles
  • Ray tracing is supported, enabling hardware-accelerated lighting and shadow rendering
  • PCIe 5.0 interface ensures the card is compatible with current-generation motherboard platforms
Cons
  • No USB-C video output is available, limiting connectivity options for certain modern displays
  • DLSS and XeSS upscaling are not supported, restricting upscaling choices to AMD FSR4 only
  • No water cooling support; the card relies entirely on air cooling despite its 220W TDP
  • RGB lighting is absent, offering no visual customization on the card itself
  • At 312 mm in length, the card may not fit in compact or smaller mid-tower cases
Who is this for?

This card is well-suited to users who need substantial graphical headroom for high-resolution gaming and rendering, given its 16GB GDDR6 VRAM, 37.13 TFLOPS of floating-point output, and ray tracing support. The inclusion of ECC memory and Double Precision Floating Point also makes it a reasonable fit for compute and professional workloads that benefit from data integrity. Users running multi-monitor setups of up to four displays will find the output configuration practical, and the PCIe 5.0 interface suits those building or upgrading on a current-generation platform.

Who is this NOT for?

Users working in compact or small-form-factor builds may find the 312 mm card length a limiting factor, as physical clearance can be a genuine constraint in tighter chassis. Those who rely on DLSS or XeSS upscaling for frame rate optimization will need to look elsewhere, as neither technology is supported here. The card is also not a fit for users requiring USB-C video output, nor for anyone seeking a passively or liquid-cooled solution, since the card ships with air cooling only and carries a 220W TDP that requires adequate case airflow.

Performance:

GPU clock speed 1330 MHz
GPU turbo 2590 MHz
pixel rate 331.5 GPixel/s
floating-point performance 37.13 TFLOPS
texture rate 580.2 GTexels/s
GPU memory speed 2518 MHz
shading units 3584
texture mapping units (TMUs) 224
render output units (ROPs) 128
Has Double Precision Floating Point (DPFP)

The Asus Prime Radeon RX 9070 OC Edition operates at a base GPU clock of 1330 MHz, climbing to a boost frequency of 2590 MHz under load. It delivers 37.13 TFLOPS of floating-point performance, alongside a pixel rate of 331.5 GPixel/s and a texture rate of 580.2 GTexels/s. The card is equipped with 3584 shading units, 224 texture mapping units, and 128 render output units, while GPU memory runs at 2518 MHz. Double Precision Floating Point is also supported, broadening its suitability for compute-oriented workloads.

Memory:

effective memory speed 20000 MHz
maximum memory bandwidth 644.6 GB/s
VRAM 16GB
GDDR version GDDR6
memory bus width 256-bit
Supports ECC memory

The Asus Prime Radeon RX 9070 OC Edition is equipped with 16GB of GDDR6 VRAM running at an effective speed of 20,000 MHz across a 256-bit memory bus, yielding a maximum memory bandwidth of 644.6 GB/s. ECC memory support is also included, adding a layer of data integrity that can be relevant in certain compute and professional workloads.

Features:

DirectX version DirectX 12 Ultimate
OpenGL version 4.6
OpenCL version 2.2
Supports multi-display technology
supports ray tracing
Supports 3D
supports DLSS
has FSR4
has XeSS (XMX)
AMD SAM / Intel Resizable BAR AMD SAM
has LHR
has RGB lighting
supported displays 4

The Asus Prime Radeon RX 9070 OC Edition supports DirectX 12 Ultimate, OpenGL 4.6, and OpenCL 2.2, covering a broad range of graphics and compute workloads. Ray tracing and stereoscopic 3D are both supported, and the card includes AMD FSR4 as its upscaling solution; DLSS and XeSS are not supported. Multi-display output is available for up to four screens simultaneously, and AMD SAM is present to help optimize CPU-to-GPU data streaming. The card does not feature LHR or RGB lighting.

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 Asus Prime Radeon RX 9070 OC Edition offers a total of four video outputs, consisting of three DisplayPort connectors and one HDMI 2.1b port. There are no USB-C, DVI, or mini DisplayPort outputs on this card.

General info:

GPU architecture RDNA 4.0
Thermal Design Power (TDP) 220W
PCI Express (PCIe) version 5
semiconductor size 5 nm
number of transistors 53900 million
Has air-water cooling
width 312 mm
height 130 mm

The Asus Prime Radeon RX 9070 OC Edition is built on AMD's RDNA 4.0 architecture, using a 5nm manufacturing process with 53,900 million transistors packed onto the die. It connects via a PCIe 5.0 interface and carries a TDP of 220W. The card measures 312 mm in width and 130 mm in height, and relies solely on air cooling, as water cooling is not supported.

Final Verdict

The Asus Prime Radeon RX 9070 OC Edition is a capable graphics card that brings together a meaningful set of specifications for users operating on current-generation platforms. Its 16GB GDDR6 VRAM paired with 644.6 GB/s of memory bandwidth gives it solid footing for high-resolution workloads, and the addition of ECC memory and Double Precision Floating Point support extends its relevance beyond gaming into compute use cases. Practical considerations such as the 312 mm length, air-only cooling, and the absence of DLSS and XeSS mean it suits a specific type of build and workflow rather than a universal audience. For users whose setup aligns with those parameters — particularly those on AMD-based systems with adequate airflow and multi-display needs — this card presents a well-rounded option built on a modern RDNA 4.0 foundation.

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