B200 SXM6 vs Radeon Instinct MI355X
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 | CDNA 4.0 (2025−2026) | Blackwell (2024−2025) |
| GPU code name | MI350 256CU | GB100 |
| Market segment | Workstation | Workstation |
| Release date | 12 June 2025 (1 year ago) | 1 November 2024 (1 year ago) |
| Launch price (MSRP) | no data | $34,999 |
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 | 16384 | 18944 |
| Core clock speed | 1000 MHz | 120 MHz |
| Boost clock speed | 2400 MHz | 1830 MHz |
| Number of transistors | 185,000 million | 208,000 million |
| Manufacturing process technology | 3 nm | 5 nm |
| Power consumption (TDP) | 1400 Watt | 1000 Watt |
| Texture fill rate | 2,457.6 | 1,083.4 |
| Floating-point processing power | 78.64 TFLOPS | no data |
| ROPs | no data | 24 |
| TMUs | 1024 | 592 |
| Tensor Cores | 1024 | 592 |
| L1 Cache | 8 MB | 37 MB |
| L2 Cache | 32 MB | 126 MB |
| L3 Cache | 256 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).
| Interface | PCIe 5.0 x16 | PCIe 6.0 x16 |
| Length | 102 mm | no data |
| Width | OAM Module | 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 | HBM3e | HBM3e |
| Maximum RAM amount | 288 GB | 180 GB |
| Memory bus width | 8192 Bit | 8192 Bit |
| Memory clock speed | 2000 MHz | 2000 MHz |
| Memory bandwidth | 8.19 TB/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 | No outputs | No outputs |
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 | - | 10.0 |
| DLSS | + | + |
Pros & cons summary
| Recency | 12 June 2025 | 1 November 2024 |
| Maximum RAM amount | 288 GB | 180 GB |
| Chip lithography | 3 nm | 5 nm |
| Power consumption (TDP) | 1400 Watt | 1000 Watt |
Instinct MI355X has an age advantage of 7 months, a 60% higher maximum VRAM amount, and a 67% more advanced lithography process.
B200 SXM6, on the other hand, has 40% lower power consumption.
We couldn't decide between Radeon Instinct MI355X and B200 SXM6. We've got no test results to judge.
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