Radeon RX 7400 OEM vs Rubin Ultra GPU
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Architecture | Rubin Ultra (2027) | RDNA 3 (2023−2025) |
| GPU code name | GR110 | Navi 33 |
| Market segment | Workstation | Desktop |
| Release date | 2027 | 8 August 2025 (1 year ago) |
Detailed specifications
General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Real power consumption of some graphics cards can well exceed their nominal TDP, especially if overclocked.
| Pipelines / CUDA cores | 57344 | 1792 |
| Core clock speed | 700 MHz | 330 MHz |
| Boost clock speed | 2267 MHz | 1100 MHz |
| Number of transistors | 670,000 million | 13.3 billion |
| Manufacturing process technology | 3 nm | 6 nm |
| Power consumption (TDP) | 3600 Watt | 55 Watt |
| Texture fill rate | 4,062.5 | 123.2 |
| Floating-point processing power | 260 TFLOPS | no data |
| ROPs | 24 | 64 |
| TMUs | 1792 | 112 |
| Tensor Cores | 1792 | no data |
| Ray Tracing Cores | no data | 28 |
| L0 Cache | no data | 448 KB |
| L1 Cache | 112 MB | 512 KB |
| L2 Cache | 128 MB | 2 MB |
| L3 Cache | no data | 32 MB |
Form factor & compatibility
Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).
| Interface | PCIe 6.0 x16 | PCIe 4.0 x8 |
| Length | no data | 167 mm |
| Width | SXM Module | 1-slot |
| Supplementary power connectors | no data | None |
VRAM capacity and type
Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.
| Memory type | HBM4e | GDDR6 |
| Maximum RAM amount | 1024 GB | 8 GB |
| Memory bus width | 32768 Bit | 128 Bit |
| Memory clock speed | 1900 MHz | 1350 MHz |
| Memory bandwidth | 31.1 TB/s | 172.8 GB/s |
| Resizable BAR | + | + |
Connectivity and outputs
This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.
| Display Connectors | No outputs | 4x mini-DisplayPort 2.1 |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | N/A | 12 Ultimate (12_2) |
| Shader Model | N/A | 6.9 |
| OpenGL | N/A | 4.6 |
| OpenCL | 3.0 | 2.0 |
| Vulkan | N/A | 1.4 |
| CUDA | 10.7 | - |
| DLSS | + | - |
Pros & cons summary
| Maximum RAM amount | 1024 GB | 8 GB |
| Chip lithography | 3 nm | 6 nm |
| Power consumption (TDP) | 3600 Watt | 55 Watt |
Rubin Ultra GPU has a 12700% higher maximum VRAM amount, and a 50% more advanced lithography process.
RX 7400 OEM, on the other hand, has 98% lower power consumption.
We couldn't decide between Rubin Ultra GPU and Radeon RX 7400 OEM. We've got no test results to judge.
Be aware that Rubin Ultra GPU is a workstation graphics card while Radeon RX 7400 OEM is a desktop one.
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