B300 SXM6 AC vs N1 20SM
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 | Blackwell 2.0 (2025−2026) | Blackwell Ultra (2025) |
| GPU code name | GB20B | GB110 |
| Market segment | Laptop | Workstation |
| Release date | 1 June 2026 (less than a year ago) | 11 September 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 | 2560 | 18944 |
| Core clock speed | 741 MHz | 1665 MHz |
| Boost clock speed | 2346 MHz | 2032 MHz |
| Number of transistors | no data | 208,000 million |
| Manufacturing process technology | 5 nm | 5 nm |
| Power consumption (TDP) | no data | 1100 Watt |
| Texture fill rate | 375.4 | 1,202.9 |
| Floating-point processing power | 12.01 TFLOPS | 76.99 TFLOPS |
| ROPs | 24 | 24 |
| TMUs | 160 | 592 |
| Tensor Cores | 80 | 592 |
| Ray Tracing Cores | 20 | no data |
| L1 Cache | 2.5 MB | 37 MB |
| L2 Cache | 50 MB | 126 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 5.0 x16 | 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 | LPDDR5X | HBM3e |
| Maximum RAM amount | 128 GB | 288 GB |
| Memory bus width | 256 Bit | 8192 Bit |
| Memory clock speed | 1067 MHz | 2000 MHz |
| Memory bandwidth | 273.2 GB/s | 8.19 TB/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 | 1x HDMI | No outputs |
| HDMI | + | - |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | N/A | N/A |
| Shader Model | N/A | N/A |
| OpenGL | N/A | N/A |
| OpenCL | 3.0 | 3.0 |
| Vulkan | N/A | N/A |
| CUDA | 12.1 | 10.3 |
| DLSS | + | + |
Pros & cons summary
| Recency | 1 June 2026 | 11 September 2025 |
| Maximum RAM amount | 128 GB | 288 GB |
N1 20SM has an age advantage of 8 months.
B300 SXM6 AC, on the other hand, has a 56% higher maximum VRAM amount.
We couldn't decide between N1 20SM and B300 SXM6 AC. We've got no test results to judge.
Be aware that N1 20SM is a notebook graphics card while B300 SXM6 AC is a workstation one.
Other comparisons
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
