Radeon Instinct MI250 vs Matrox Millennium G400
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 | G400 (1999−2002) | CDNA 2.0 (2021) |
| GPU code name | Toucan | Aldebaran |
| Market segment | Desktop | Workstation |
| Release date | 20 May 1999 (25 years ago) | 8 November 2021 (3 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 | no data | 13312 |
| Core clock speed | 125 MHz | 1000 MHz |
| Boost clock speed | no data | 1700 MHz |
| Number of transistors | 10 million | 58,200 million |
| Manufacturing process technology | 250 nm | 6 nm |
| Power consumption (TDP) | no data | 500 Watt |
| Texture fill rate | 0.25 | 1,414 |
| Floating-point processing power | no data | 45.26 TFLOPS |
| ROPs | 2 | no data |
| TMUs | 2 | 832 |
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 | PCI | PCIe 4.0 x16 |
| Length | 150 mm | 267 mm |
| Width | 1-slot | 2-slot |
| Supplementary power connectors | None | 2x 8-pin |
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 | SDR | HBM2e |
| Maximum RAM amount | 32 MB | 128 GB |
| Memory bus width | 128 Bit | 8192 Bit |
| Memory clock speed | 166 MHz | 1600 MHz |
| Memory bandwidth | 2.656 GB/s | 3,277 GB/s |
Connectivity and outputs
Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.
| Display Connectors | 1x DVI, 1x VGA | No outputs |
API compatibility
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 6.0 | N/A |
| Shader Model | no data | N/A |
| OpenGL | None | N/A |
| OpenCL | None | 3.0 |
| Vulkan | N/A | N/A |
Pros & cons summary
| Recency | 20 May 1999 | 8 November 2021 |
| Maximum RAM amount | 32 MB | 128 GB |
| Chip lithography | 250 nm | 6 nm |
Instinct MI250 has an age advantage of 22 years, a 409500% higher maximum VRAM amount, and a 4066.7% more advanced lithography process.
We couldn't decide between Matrox Millennium G400 and Radeon Instinct MI250. We've got no test results to judge.
Be aware that Matrox Millennium G400 is a desktop card while Radeon Instinct MI250 is a workstation one.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
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