AMD Radeon Pro 555X vs Intel Iris Xe MAX Graphics
Graphics Processor
| GPU model | Polaris 21 | DG1 |
|---|---|---|
| GPU variant | Polaris 21 PRO | — |
| Architecture | GCN 4.0 | Generation 12.1 |
| Foundry | GlobalFoundries | Intel |
| Manufacturing process | 14 nm | 10 nm |
| Number of transistors | 3,000 million | unknown |
| Die size | 123 mm² | 95 mm² |
Mobile graphics
| Release date | Jul 16th, 2018 | Oct 31st, 2020 |
|---|---|---|
| Generation | Radeon Pro Mac (500X Series) | Iris Xe Graphics-M (Tiger Lake) |
| Production | Active | Active |
| Interface | PCIe 3.0 x8 | PCIe 4.0 x4 |
| Reviews | — | 1 in our database |
Clocks
| GPU clock | 907 MHz | — |
|---|---|---|
| Memory clock | 1470 MHz 5.9 Gbps effective | 2133 MHz 4.3 Gbps effective |
| Base clock | — | 300 MHz |
| Boost clock | — | 1650 MHz |
Memory Configuration
| Memory size | 4 GB | 4 GB |
|---|---|---|
| Memory type | GDDR5 | LPDDR4X |
| Memory bus width | 128 bit | 128 bit |
| Bandwidth | 94.08 GB/s | 68.26 GB/s |
Render Configuration
| Shading units | 768 | 768 |
|---|---|---|
| TMUs | 48 | 48 |
| ROPs | 16 | 24 |
| Compute units | 12 | — |
| Cache L1 | 16 KB (per CU) | — |
| Cache L2 | 1024 KB | 1024 KB |
| Execution units | — | 96 |
| gpu.details.l3-cache | — | 16 MB |
Performance
| Pixel rate | 14.51 GPixel/s | 39.60 GPixel/s |
|---|---|---|
| Texture rate | 43.54 GTexel/s | 79.20 GTexel/s |
| FP16 (half) performance | 1,393 GFLOPS (1:1) | 5.069 TFLOPS (2:1) |
| FP32 (float) performance | 1,393 GFLOPS | 2.534 TFLOPS |
| FP64 (double) performance | 87.07 GFLOPS (1:16) | 633.6 GFLOPS (1:4) |
Dimensions & Outputs
| Slot width | IGP | IGP |
|---|---|---|
| TDP | 75 W | 25 W |
| Outputs | No outputs | No outputs |
| Power connectors | None | — |
API Support & Features
| DirectX | 12 (12_0) | 12 (12_1) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 | 3.0 |
| Vulkan | 1.2 | 1.2 |
| Shader model | 6.4 | 6.4 |
