TurboVS
ASRock Radeon RX 7900 GRE Steel Legend specifications and in-depth review

ASRock Radeon RX 7900 GRE Steel Legend

Manufacturer: ASRock

The ASRock Radeon RX 7900 GRE Steel Legend is a graphics card based on AMD's RDNA 3.0 architecture, manufactured on a 5 nm process and carrying 57,700 million transistors. It features RGB lighting and supports up to four simultaneous displays, making it a broadly capable card for multi-monitor configurations. AMD SAM (Smart Access Memory) support is included, and the card measures 304 mm in length with a 260W TDP handled entirely through air cooling.

On the memory side, the card is equipped with 16GB of GDDR6 VRAM across a 256-bit bus, reaching an effective speed of 18,000 MHz and a peak bandwidth of 576 GB/s. Compute performance is rated at 48.03 TFLOPS, with a texture rate of 750.4 GTexels/s and a pixel rate of 450.2 GPixel/s, backed by 5,120 shading units, 320 TMUs, and 192 ROPs. The card supports DirectX 12 Ultimate, OpenGL 4.6, OpenCL 2.2, ray tracing, and ECC memory, while connectivity is handled through one HDMI 2.1 port and three DisplayPort outputs. DLSS and XeSS are not supported.

Pros
  • Comes with 16GB of GDDR6 VRAM on a 256-bit bus, offering substantial memory capacity for demanding workloads
  • Supports up to four simultaneous displays with a mix of one HDMI 2.1 and three DisplayPort outputs
  • Ray tracing support is included, enabling hardware-accelerated lighting in compatible applications
  • ECC memory support adds a layer of data integrity for compute-oriented tasks
  • AMD SAM support allows compatible systems to take advantage of expanded GPU memory access
  • RGB lighting is built in, providing visual customization options for the build
Cons
  • A 260W TDP places meaningful demands on system power delivery and case airflow
  • The 304 mm card length may create fitment challenges in smaller or mid-tower cases
  • Water cooling is not supported, leaving thermal management entirely dependent on the air cooler
  • DLSS and XeSS are not available, limiting AI-based upscaling to AMD-native solutions only
  • No USB-C output is provided, which may be a limitation for users with compatible monitors or headsets
Who is this for?

This card is well-suited to users running demanding rendering and compute workloads that benefit from 16GB of GDDR6 VRAM with ECC support, such as 3D content creation or data-parallel processing tasks. Its four-display output capability with HDMI 2.1 and three DisplayPort connections makes it a practical fit for multi-monitor desktop setups. Users who prioritize AMD's ecosystem — including SAM support and hardware ray tracing — within a high-throughput graphics card will find the specifications align well with those needs.

Who is this NOT for?

Users working in compact or small-form-factor builds will likely find the 304 mm card length and 260W TDP difficult to accommodate, both physically and in terms of cooling headroom. Those who rely on AI-based upscaling through DLSS or XeSS will not find support here, as neither technology is available on this card. Additionally, users seeking a passively cooled or water-cooled solution should look elsewhere, since thermal management is limited strictly to the included air cooler.

Performance:

GPU clock speed 1500 MHz
GPU turbo 2345 MHz
pixel rate 450.2 GPixel/s
floating-point performance 48.03 TFLOPS
texture rate 750.4 GTexels/s
GPU memory speed 2250 MHz
shading units 5120
texture mapping units (TMUs) 320
render output units (ROPs) 192
Has Double Precision Floating Point (DPFP) ✓

The card operates with a base GPU clock of 1500 MHz and a boost clock of 2345 MHz, while GPU memory runs at 2250 MHz. Floating-point performance reaches 48.03 TFLOPS, accompanied by a texture rate of 750.4 GTexels/s and a pixel rate of 450.2 GPixel/s. These figures are supported by 5,120 shading units, 320 texture mapping units, and 192 render output units. Double Precision Floating Point (DPFP) is also supported, adding utility for compute-oriented workloads.

Memory:

effective memory speed 18000 MHz
maximum memory bandwidth 576 GB/s
VRAM 16GB
GDDR version GDDR6
memory bus width 256-bit
Supports ECC memory ✓

This card comes equipped with 16GB of GDDR6 VRAM running at an effective speed of 18,000 MHz across a 256-bit memory bus, delivering a maximum bandwidth of 576 GB/s. ECC memory support is included, which helps detect and correct memory errors in workloads where data integrity is a priority.

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 XeSS (XMX) ✕
AMD SAM / Intel Resizable BAR AMD SAM
has LHR ✕
has RGB lighting ✓
supported displays 4

The card supports DirectX 12 Ultimate, OpenGL 4.6, and OpenCL 2.2, covering a broad range of graphics and compute APIs. Ray tracing and stereoscopic 3D are both supported, while DLSS and XeSS (XMX) are not available on this card. Multi-display output is supported across up to four screens, and AMD SAM (Smart Access Memory) is included for compatible system configurations. LHR is not present, and the card features RGB lighting for visual customization.

Ports:

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

The card's output configuration consists of one HDMI 2.1 port and three DisplayPort outputs, totaling four available display connections. There are no USB-C, DVI, or mini DisplayPort outputs on this card.

General info:

GPU architecture RDNA 3.0
Thermal Design Power (TDP) 260W
PCI Express (PCIe) version 4
semiconductor size 5 nm
number of transistors 57700 million
Has air-water cooling ✕
width 304 mm

This card is built on the RDNA 3.0 architecture, fabricated on a 5 nm process and integrating 57,700 million transistors. It connects via PCIe 4 and carries a Thermal Design Power of 260W, with cooling handled exclusively through air — water cooling is not supported. The card has a width of 304 mm.

Final Verdict

The ASRock Radeon RX 7900 GRE Steel Legend is a well-specified graphics card that brings together a capable set of features under the RDNA 3.0 architecture, with 16GB of GDDR6 VRAM backed by 576 GB/s of memory bandwidth standing out as one of its most practical assets for memory-intensive workloads. Ray tracing support, ECC memory, AMD SAM integration, and a four-display output configuration round out a feature set that serves both creative and compute-oriented users reasonably well. Its 260W TDP and 304 mm footprint do impose real constraints on system compatibility, and the absence of DLSS or XeSS narrows its appeal for users invested in those upscaling pipelines. Overall, this card presents a coherent option for users already aligned with AMD's ecosystem who need substantial VRAM capacity and broad display connectivity in a standard air-cooled form factor.

Popular Comparisons

ASRock Radeon RX 7900 GRE Steel Legend
ASRock Radeon RX 7900 GRE Steel Legend
VS
Palit GeForce RTX 5070 Infinity 3 OC
Palit GeForce RTX 5070 Infinity 3 OC