RTX PRO 4000 Blackwell Mobile vs Radeon RX 6800S
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 143 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 28.95 | no data |
| Architecture | RDNA 2.0 (2020−2025) | Blackwell 2.0 (2025−2026) |
| GPU code name | Navi 23 | GB203 |
| Market segment | Laptop | Mobile workstation |
| Release date | 4 January 2022 (4 years ago) | 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 | 7680 |
| Core clock speed | 1800 MHz | 975 MHz |
| Boost clock speed | 2100 MHz | 1702 MHz |
| Number of transistors | 11,060 million | 45,600 million |
| Manufacturing process technology | 7 nm | 5 nm |
| Power consumption (TDP) | 100 Watt | 80 Watt |
| Texture fill rate | 268.8 | 408.5 |
| Floating-point processing power | 8.602 TFLOPS | 26.14 TFLOPS |
| ROPs | 64 | 96 |
| TMUs | 128 | 240 |
| Tensor Cores | no data | 240 |
| Ray Tracing Cores | 32 | 60 |
| L0 Cache | 512 KB | no data |
| L1 Cache | 512 KB | 7.5 MB |
| L2 Cache | 2 MB | 64 MB |
| L3 Cache | 32 MB | no data |
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).
| Laptop size | medium sized | no data |
| Interface | PCIe 4.0 x8 | PCIe 5.0 x16 |
| 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 | GDDR6 | GDDR7 |
| Maximum RAM amount | 8 GB | 16 GB |
| Memory bus width | 128 Bit | 256 Bit |
| Memory clock speed | 2000 MHz | 1750 MHz |
| Memory bandwidth | 256.0 GB/s | 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 | No outputs | Portable Device Dependent |
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 | 6.5 | 6.8 |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 | 3.0 |
| Vulkan | 1.3 | 1.4 |
| CUDA | - | 12.0 |
| DLSS | - | + |
Pros & cons summary
| Recency | 4 January 2022 | 19 March 2025 |
| Maximum RAM amount | 8 GB | 16 GB |
| Chip lithography | 7 nm | 5 nm |
| Power consumption (TDP) | 100 Watt | 80 Watt |
RTX PRO 4000 Blackwell Mobile has an age advantage of 3 years, a 100% higher maximum VRAM amount, a 40% more advanced lithography process, and 25% lower power consumption.
We couldn't decide between Radeon RX 6800S and RTX PRO 4000 Blackwell Mobile. We've got no test results to judge.
Be aware that Radeon RX 6800S is a notebook graphics card while RTX PRO 4000 Blackwell Mobile is a mobile workstation one.
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