Rubin Ultra GPU vs Arc Pro B390
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 281 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 21.94 | no data |
| Architecture | Xe3-LPG (2026) | Rubin Ultra (2027) |
| GPU code name | Panther Lake | GR110 |
| Market segment | Laptop | Workstation |
| Release date | 27 January 2026 (less than a year ago) | 2027 |
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 | 1536 | 57344 |
| Core clock speed | 300 MHz | 700 MHz |
| Boost clock speed | 2500 MHz | 2267 MHz |
| Number of transistors | no data | 670,000 million |
| Manufacturing process technology | 3 nm | 3 nm |
| Power consumption (TDP) | 80 Watt | 3600 Watt |
| Texture fill rate | 120.0 | 4,062.5 |
| Floating-point processing power | 7.68 TFLOPS | 260 TFLOPS |
| ROPs | 24 | 24 |
| TMUs | 48 | 1792 |
| Tensor Cores | no data | 1792 |
| Ray Tracing Cores | 12 | no data |
| L1 Cache | 768 KB | 112 MB |
| L2 Cache | 16 MB | 128 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 | IGP | PCIe 6.0 x16 |
| Width | no data | SXM Module |
| Supplementary power connectors | None | no data |
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 | System Shared | HBM4e |
| Maximum RAM amount | System Shared | 1024 GB |
| Memory bus width | System Shared | 32768 Bit |
| Memory clock speed | System Shared | 1900 MHz |
| Memory bandwidth | no data | 31.1 TB/s |
| Shared memory | + | - |
| 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 | Portable Device Dependent | No outputs |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 Ultimate (12_2) | N/A |
| Shader Model | 6.9 | N/A |
| OpenGL | 4.6 | N/A |
| OpenCL | 3.0 | 3.0 |
| Vulkan | 1.4 | N/A |
| CUDA | - | 10.7 |
| DLSS | - | + |
Pros & cons summary
| Power consumption (TDP) | 80 Watt | 3600 Watt |
Arc Pro B390 has 4400% lower power consumption.
We couldn't decide between Arc Pro B390 and Rubin Ultra GPU. We've got no test results to judge.
Be aware that Arc Pro B390 is a notebook graphics card while Rubin Ultra GPU is a workstation one.
Other comparisons
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