Radeon Instinct MI250 vs R5 A255
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in performance ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Architecture | GCN 3.0 (2014−2017) | CDNA 2.0 (2021) |
| GPU code name | Topaz | Aldebaran |
| Market segment | Desktop | Desktop |
| Release date | 2014 (10 years ago) | 8 November 2021 (2 years ago) |
| Current price | no data | $12340 |
Detailed specifications
General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.
| Pipelines / CUDA cores | 384 | 13312 |
| Core clock speed | 925 MHz | no data |
| Boost clock speed | 940 MHz | 1700 MHz |
| Number of transistors | 1,550 million | 58,200 million |
| Manufacturing process technology | 28 nm | 6 nm |
| Power consumption (TDP) | no data | 500 Watt |
| Texture fill rate | 22.56 | 1,414 |
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 3.0 x8 | PCIe 4.0 x16 |
| Length | no data | 267 mm |
| Width | no data | 2-slot |
| Supplementary power connectors | no data | 2x 8-pin |
| Memory type | GDDR5 | HBM2e |
| Maximum RAM amount | 1 GB | 128 GB |
| Memory bus width | 128 Bit | 8192 Bit |
| Memory clock speed | 4 GB/s | 3.2 GB/s |
| Memory bandwidth | 64 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 | Portable Device Dependent | No outputs |
API compatibility
List of supported graphics and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (12_0) | N/A |
| Shader Model | 6.5 | N/A |
| OpenGL | 4.6 | N/A |
| OpenCL | 2.1 | 3.0 |
| Vulkan | 1.2.170 | N/A |
Pros & cons summary
| Maximum RAM amount | 1 GB | 128 GB |
| Chip lithography | 28 nm | 6 nm |
We couldn't decide between Radeon R5 A255 and Radeon Instinct MI250. We've got no test results to judge.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
Comparisons with similar GPUs
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