AMD Radeon HD 8790M vs AMD Radeon Vega 6
Graphics Processor
| GPU model | Mars | Cezanne |
|---|---|---|
| GPU variant | Mars XTX | — |
| Architecture | GCN 1.0 | GCN 5.1 |
| Foundry | TSMC | TSMC |
| Manufacturing process | 28 nm | 7 nm |
| Number of transistors | 950 million | 9,800 million |
| Die size | 77 mm² | 156 mm² |
Mobile graphics
| Release date | Apr 1st, 2013 | — |
|---|---|---|
| Generation | Solar System (HD 8700M) | — |
| Production | End-of-life | — |
| Interface | MXM-A (3.0) | — |
| Predecessor | London | — |
| Successor | Crystal System | — |
Clocks
| Base clock | 850 MHz | 300 MHz |
|---|---|---|
| Boost clock | 900 MHz | 1700 MHz |
| Memory clock | 1000 MHz 4 Gbps effective | System Shared |
Memory Configuration
| Memory size | 2 GB | System Shared |
|---|---|---|
| Memory type | GDDR5 | System Shared |
| Memory bus width | 128 bit | System Shared |
| Bandwidth | 64.00 GB/s | System Dependent |
Render Configuration
| Shading units | 384 | 384 |
|---|---|---|
| TMUs | 24 | 24 |
| ROPs | 8 | 8 |
| Compute units | 6 | 6 |
| Cache L1 | 16 KB (per CU) | — |
| Cache L2 | 256 KB | — |
Performance
| Pixel rate | 7.200 GPixel/s | 13.60 GPixel/s |
|---|---|---|
| Texture rate | 21.60 GTexel/s | 40.80 GTexel/s |
| FP32 (float) performance | 691.2 GFLOPS | 1,306 GFLOPS |
| FP64 (double) performance | 43.20 GFLOPS (1:16) | 81.60 GFLOPS (1:16) |
| FP16 (half) performance | — | 2.611 TFLOPS (2:1) |
Dimensions & Outputs
| Slot width | MXM Module | IGP |
|---|---|---|
| TDP | unknown | 45 W |
| Outputs | No outputs | No outputs |
| Power connectors | None | None |
| Board number | C615 | — |
API Support & Features
| DirectX | 12 (11_1) | 12 (12_1) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 2.1 |
| Vulkan | 1.2 | 1.2 |
| Shader model | 5.1 | 6.4 |
Other Features
Integrated Graphics
| Release date | — | Apr 13th, 2021 |
|---|---|---|
| Generation | — | Cezanne (Vega) |
| Predecessor | — | Renoir |
| Production | — | Active |
| Interface | — | IGP |
