AMD Radeon Instinct MI8 vs AMD Radeon R9 M395X Mac Edition
Graphics Processor
| GPU model | Fiji | Amethyst |
|---|---|---|
| GPU variant | Fiji XT | Amethyst XT |
| Architecture | GCN 3.0 | GCN 3.0 |
| Foundry | TSMC | TSMC |
| Manufacturing process | 28 nm | 28 nm |
| Number of transistors | 8,900 million | 5,000 million |
| Die size | 596 mm² | 366 mm² |
Graphics Card
| Release date | Dec 12th, 2016 | — |
|---|---|---|
| Generation | Radeon Instinct | — |
| Production | End-of-life | — |
| Interface | PCIe 3.0 x16 | — |
Clocks
| GPU clock | 1000 MHz | 909 MHz |
|---|---|---|
| Memory clock | 500 MHz 1000 Mbps effective | 1365 MHz 5.5 Gbps effective |
Memory Configuration
| Memory size | 4 GB | 4 GB |
|---|---|---|
| Memory type | HBM | GDDR5 |
| Memory bus width | 4096 bit | 256 bit |
| Bandwidth | 512.0 GB/s | 174.7 GB/s |
Render Configuration
| Shading units | 4096 | 2048 |
|---|---|---|
| TMUs | 256 | 128 |
| ROPs | 64 | 32 |
| Compute units | 64 | 32 |
| Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
| Cache L2 | 2 MB | 512 KB |
Performance
| Pixel rate | 64.00 GPixel/s | 29.09 GPixel/s |
|---|---|---|
| Texture rate | 256.0 GTexel/s | 116.4 GTexel/s |
| FP16 (half) performance | 8.192 TFLOPS (1:1) | 3.723 TFLOPS (1:1) |
| FP32 (float) performance | 8.192 TFLOPS | 3.723 TFLOPS |
| FP64 (double) performance | 512.0 GFLOPS (1:16) | 232.7 GFLOPS (1:16) |
Dimensions & Outputs
| Slot width | Dual-slot | MXM Module |
|---|---|---|
| Length | 152 mm 6 inches | — |
| Width | 111 mm 4.4 inches | — |
| TDP | 175 W | 250 W |
| Suggested PSU | 450 W | — |
| Outputs | No outputs | No outputs |
| Power connectors | 1x 8-pin | None |
API Support & Features
| DirectX | 12 (12_0) | 12 (12_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 2.0 |
| Vulkan | 1.2 | 1.2 |
| Shader model | 6.3 | 6.3 |
Other Features
Mobile graphics
| Release date | — | May 5th, 2015 |
|---|---|---|
| Generation | — | Crystal System (R9 M300) |
| Production | — | End-of-life |
| Interface | — | MXM-B (3.0) |
| Predecessor | — | Solar System |
| Successor | — | Mobility Radeon |
