AMD Radeon Instinct MI250X vs AMD Radeon RX 460
Graphics Processor
| GPU model | Aldebaran | Baffin |
|---|---|---|
| GPU variant | Aldebaran XT | Baffin PRO |
| Architecture | CDNA 2.0 | GCN 4.0 |
| Foundry | TSMC | GlobalFoundries |
| Manufacturing process | 6 nm | 14 nm |
| Number of transistors | 58,200 million | 3,000 million |
| Die size | unknown | 123 mm² |
Graphics Card
| Release date | Nov 8th, 2021 | Aug 8th, 2016 |
|---|---|---|
| Generation | Radeon Instinct | Arctic Islands |
| Production | unknown | Active |
| Interface | PCIe 4.0 x16 | PCIe 3.0 x8 |
| Predecessor | — | Pirate Islands |
| Successor | — | Polaris |
Clocks
| Base clock | 1000 MHz | 1090 MHz |
|---|---|---|
| Boost clock | 1700 MHz | 1200 MHz |
| Memory clock | 1600 MHz 3.2 Gbps effective | 1750 MHz 7 Gbps effective |
Memory Configuration
| Memory size | 128 GB | 2 GB |
|---|---|---|
| Memory type | HBM2E | GDDR5 |
| Memory bus width | 8192 bit | 128 bit |
| Bandwidth | 3,277 GB/s | 112.0 GB/s |
Render Configuration
| Shading units | 14080 | 896 |
|---|---|---|
| TMUs | 880 | 56 |
| ROPs | 0 | 16 |
| Compute units | 220 | 14 |
| Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
| Cache L2 | 16 MB | 1024 KB |
| gpu.details.mcm | 2 | — |
Performance
| Pixel rate | 0 MPixel/s | 19.20 GPixel/s |
|---|---|---|
| Texture rate | 1,496 GTexel/s | 67.20 GTexel/s |
| FP16 (half) performance | 383.0 TFLOPS (8:1) | 2.150 TFLOPS (1:1) |
| FP32 (float) performance | 47.87 TFLOPS | 2.150 TFLOPS |
| FP64 (double) performance | 47.87 TFLOPS (1:1) | 134.4 GFLOPS (1:16) |
Dimensions & Outputs
| Slot width | Dual-slot | Dual-slot |
|---|---|---|
| Length | 267 mm 10.5 inches | 170 mm 6.7 inches |
| Width | 111 mm 4.4 inches | — |
| TDP | 500 W | 75 W |
| Suggested PSU | 900 W | 250 W |
| Outputs | No outputs | 1x DVI1x HDMI1x DisplayPort |
| Power connectors | 2x 8-pin | None |
| Board number | — | C994 |
API Support & Features
| DirectX | — | 12 (12_0) |
|---|---|---|
| OpenGL | — | 4.6 |
| OpenCL | 3.0 | 2.1 |
| Vulkan | — | 1.2 |
| Shader model | — | 6.4 |
