AMD Radeon Instinct MI8 vs AMD Radeon Pro Vega 16
Graphics Processor
| GPU model | Fiji | Vega 12 |
|---|---|---|
| GPU variant | Fiji XT | Vega 12 XLA |
| Architecture | GCN 3.0 | GCN 5.0 |
| Foundry | TSMC | GlobalFoundries |
| Manufacturing process | 28 nm | 14 nm |
| Number of transistors | 8,900 million | unknown |
| Die size | 596 mm² | unknown |
Graphics Card
| Release date | Dec 12th, 2016 | — |
|---|---|---|
| Generation | Radeon Instinct | — |
| Production | End-of-life | — |
| Interface | PCIe 3.0 x16 | — |
Clocks
| GPU clock | 1000 MHz | — |
|---|---|---|
| Memory clock | 500 MHz 1000 Mbps effective | 1200 MHz 2.4 Gbps effective |
| Base clock | — | 815 MHz |
| Boost clock | — | 1190 MHz |
Memory Configuration
| Memory size | 4 GB | 4 GB |
|---|---|---|
| Memory type | HBM | HBM2 |
| Memory bus width | 4096 bit | 1024 bit |
| Bandwidth | 512.0 GB/s | 307.2 GB/s |
Render Configuration
| Shading units | 4096 | 1024 |
|---|---|---|
| TMUs | 256 | 64 |
| ROPs | 64 | 32 |
| Compute units | 64 | 16 |
| Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
| Cache L2 | 2 MB | 1024 KB |
Performance
| Pixel rate | 64.00 GPixel/s | 38.08 GPixel/s |
|---|---|---|
| Texture rate | 256.0 GTexel/s | 76.16 GTexel/s |
| FP16 (half) performance | 8.192 TFLOPS (1:1) | 4.874 TFLOPS (2:1) |
| FP32 (float) performance | 8.192 TFLOPS | 2.437 TFLOPS |
| FP64 (double) performance | 512.0 GFLOPS (1:16) | 152.3 GFLOPS (1:16) |
Dimensions & Outputs
| Slot width | Dual-slot | IGP |
|---|---|---|
| Length | 152 mm 6 inches | — |
| Width | 111 mm 4.4 inches | — |
| TDP | 175 W | 75 W |
| Suggested PSU | 450 W | — |
| Outputs | No outputs | No outputs |
| Power connectors | 1x 8-pin | — |
API Support & Features
| DirectX | 12 (12_0) | 12 (12_1) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 2.1 |
| Vulkan | 1.2 | 1.2 |
| Shader model | 6.3 | 6.3 |
Other Features
Mobile graphics
| Release date | — | Nov 14th, 2018 |
|---|---|---|
| Generation | — | Radeon Pro Mac (Vega Series) |
| Production | — | Active |
| Interface | — | PCIe 3.0 x16 |
