GeForce RTX 6080 vs Arc B390
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 300 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 20.75 | no data |
| Architecture | Xe3-LPG (2026) | Rubin (2026−2027) |
| GPU code name | Panther Lake | GR203 |
| Market segment | Laptop | Desktop |
| 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 | 10752 |
| Core clock speed | 300 MHz | 2300 MHz |
| Boost clock speed | 2500 MHz | 2800 MHz |
| Manufacturing process technology | 3 nm | 3 nm |
| Power consumption (TDP) | 80 Watt | 350 Watt |
| Texture fill rate | 120.0 | 940.8 |
| Floating-point processing power | 7.68 TFLOPS | 60.21 TFLOPS |
| ROPs | 24 | 112 |
| TMUs | 48 | 336 |
| Tensor Cores | no data | 336 |
| Ray Tracing Cores | 12 | 84 |
| L1 Cache | 768 KB | 10.5 MB |
| L2 Cache | 16 MB | 64 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 5.0 x16 |
| Width | no data | 2-slot |
| Supplementary power connectors | None | 1x 16-pin |
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 | GDDR7 |
| Maximum RAM amount | System Shared | 20 GB |
| Memory bus width | System Shared | 320 Bit |
| Memory clock speed | System Shared | 1875 MHz |
| Memory bandwidth | no data | 1.2 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 | 1x HDMI 2.1b, 3x DisplayPort 2.1b |
| HDMI | - | + |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 Ultimate (12_2) | 12 Ultimate (12_2) |
| Shader Model | 6.9 | 6.9 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 3.0 | 3.0 |
| Vulkan | 1.4 | 1.4 |
| CUDA | - | 12.0 |
| DLSS | - | + |
Other comparisons
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
