RTX PRO 4000 Blackwell Mobile vs Radeon R9 280X2
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 | GCN 1.0 (2012−2020) | Blackwell 2.0 (2025−2026) |
| GPU code name | Tahiti | GB203 |
| Market segment | Desktop | Mobile workstation |
| Release date | no data | 19 March 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 | 2048 ×2 | 7680 |
| Core clock speed | 950 MHz | 975 MHz |
| Boost clock speed | 1000 MHz | 1702 MHz |
| Number of transistors | 4,313 million | 45,600 million |
| Manufacturing process technology | 28 nm | 5 nm |
| Power consumption (TDP) | 375 Watt | 80 Watt |
| Texture fill rate | 128.0 ×2 | 408.5 |
| Floating-point processing power | 4.096 TFLOPS ×2 | 26.14 TFLOPS |
| ROPs | 32 ×2 | 96 |
| TMUs | 128 ×2 | 240 |
| Tensor Cores | no data | 240 |
| Ray Tracing Cores | no data | 60 |
| L1 Cache | 512 KB | 7.5 MB |
| L2 Cache | 768 KB | 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 | PCIe 3.0 x16 | PCIe 5.0 x16 |
| Length | 315 mm | no data |
| Width | 2-slot | no data |
| Supplementary power connectors | 3x 8-pin | 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 | GDDR5 | GDDR7 |
| Maximum RAM amount | 3 GB ×2 | 16 GB |
| Memory bus width | 384 Bit ×2 | 256 Bit |
| Memory clock speed | 1500 MHz | 1750 MHz |
| Memory bandwidth | 288.0 GB/s ×2 | 896.0 GB/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 | 6x mini-DisplayPort 1.2 | Portable Device Dependent |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_1) | 12 Ultimate (12_2) |
| Shader Model | 6.5 (5.1) | 6.8 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 (1.2) | 3.0 |
| Vulkan | 1.2.170 | 1.4 |
| CUDA | - | 12.0 |
| DLSS | - | + |
Pros & cons summary
| Maximum RAM amount | 3 GB | 16 GB |
| Chip lithography | 28 nm | 5 nm |
| Power consumption (TDP) | 375 Watt | 80 Watt |
RTX PRO 4000 Blackwell Mobile has a 433% higher maximum VRAM amount, a 460% more advanced lithography process, and 369% lower power consumption.
We couldn't decide between Radeon R9 280X2 and RTX PRO 4000 Blackwell Mobile. We've got no test results to judge.
Be aware that Radeon R9 280X2 is a desktop graphics card while RTX PRO 4000 Blackwell Mobile is a mobile workstation one.
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