AMD Radeon HD 8970M vs AMD Radeon Instinct MI6
Graphics Processor
| GPU model | Neptune | Ellesmere |
|---|---|---|
| GPU variant | Neptune XT (216-0847000) | Ellesmere XT |
| Architecture | GCN 1.0 | GCN 4.0 |
| Foundry | TSMC | GlobalFoundries |
| Manufacturing process | 28 nm | 14 nm |
| Number of transistors | 2,800 million | 5,700 million |
| Die size | 212 mm² | 232 mm² |
Mobile graphics
| Release date | May 14th, 2013 | — |
|---|---|---|
| Generation | Solar System (HD 8900M) | — |
| Production | End-of-life | — |
| Interface | PCIe 3.0 x16 | — |
| Predecessor | London | — |
| Successor | Crystal System | — |
Clocks
| Base clock | 850 MHz | 1120 MHz |
|---|---|---|
| Boost clock | 900 MHz | 1233 MHz |
| Memory clock | 1200 MHz 4.8 Gbps effective | 1750 MHz 7 Gbps effective |
Memory Configuration
| Memory size | 4 GB | 8 GB |
|---|---|---|
| Memory type | GDDR5 | GDDR5 |
| Memory bus width | 256 bit | 256 bit |
| Bandwidth | 153.6 GB/s | 224.0 GB/s |
Render Configuration
| Shading units | 1280 | 2304 |
|---|---|---|
| TMUs | 80 | 144 |
| ROPs | 32 | 32 |
| Compute units | 20 | 36 |
| Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
| Cache L2 | 512 KB | 2 MB |
Performance
| Pixel rate | 28.80 GPixel/s | 39.46 GPixel/s |
|---|---|---|
| Texture rate | 72.00 GTexel/s | 177.6 GTexel/s |
| FP32 (float) performance | 2.304 TFLOPS | 5.682 TFLOPS |
| FP64 (double) performance | 144.0 GFLOPS (1:16) | 355.1 GFLOPS (1:16) |
| FP16 (half) performance | — | 5.682 TFLOPS (1:1) |
Dimensions & Outputs
| Slot width | MXM Module | Single-slot |
|---|---|---|
| TDP | 100 W | 150 W |
| Outputs | No outputs | No outputs |
| Length | — | 241 mm 9.5 inches |
| Width | — | 111 mm 4.4 inches |
| Suggested PSU | — | 450 W |
| Power connectors | — | 1x 6-pin |
| Board number | — | D122 |
API Support & Features
| DirectX | 12 (11_1) | 12 (12_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 2.1 |
| Vulkan | 1.2 | 1.2 |
| Shader model | 5.1 | 6.4 |
Other Features
Graphics Card
| Release date | — | Dec 12th, 2016 |
|---|---|---|
| Generation | — | Radeon Instinct |
| Production | — | Active |
| Interface | — | PCIe 3.0 x16 |
