Radeon Instinct MI300X vs 820M
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 676 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Architecture | RDNA 3.5 (2024−2025) | CDNA 3.0 (2023−2024) |
| GPU code name | Krackan Point | Aqua Vanjaram |
| Market segment | Laptop | Workstation |
| Release date | March 2025 (1 year ago) | 6 December 2023 (2 years ago) |
Detailed specifications
General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.
| Pipelines / CUDA cores | 128 | 19456 |
| Core clock speed | 400 MHz | 1000 MHz |
| Boost clock speed | 2800 MHz | 2100 MHz |
| Number of transistors | no data | 153,000 million |
| Manufacturing process technology | 4 nm | 5 nm |
| Power consumption (TDP) | 15 Watt | 750 Watt |
| Texture fill rate | 22.40 | 2,554 |
| Floating-point processing power | 0.7168 TFLOPS | 81.72 TFLOPS |
| ROPs | 4 | no data |
| TMUs | 8 | 1216 |
| Tensor Cores | no data | 1216 |
| Ray Tracing Cores | 2 | no data |
| L0 Cache | 32 KB | no data |
| L1 Cache | 32 KB | 4.8 MB |
| L2 Cache | 1024 KB | 16 MB |
| L3 Cache | no data | 256 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).
| Laptop size | medium sized | no data |
| Interface | PCIe 4.0 x8 | PCIe 5.0 x16 |
| Width | no data | OAM Module |
| Supplementary power connectors | None | None |
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 | HBM3 |
| Maximum RAM amount | System Shared | 192 GB |
| Memory bus width | System Shared | 8192 Bit |
| Memory clock speed | System Shared | 2525 MHz |
| Memory bandwidth | no data | 5,171 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 | Portable Device Dependent | No outputs |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 Ultimate (12_2) | N/A |
| Shader Model | 6.8 | N/A |
| OpenGL | 4.6 | N/A |
| OpenCL | 2.1 | 3.0 |
| Vulkan | 1.4 | N/A |
| DLSS | - | + |
Pros & cons summary
| Chip lithography | 4 nm | 5 nm |
| Power consumption (TDP) | 15 Watt | 750 Watt |
Radeon 820M has a 25% more advanced lithography process, and 4900% lower power consumption.
We couldn't decide between Radeon 820M and Radeon Instinct MI300X. We've got no test results to judge.
Be aware that Radeon 820M is a notebook graphics card while Radeon Instinct MI300X is a workstation one.
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