AMD Radeon Pro 555 vs AMD Radeon R9 M470X
Grafikprozessor
| GPU Name | Polaris 21 | Emerald |
|---|---|---|
| GPU Variante | Polaris 21 PRO | Emerald XT |
| Architektur | GCN 4.0 | GCN 2.0 |
| Hersteller | GlobalFoundries | TSMC |
| Prozessgröße | 14 nm | 28 nm |
| Transistoren | 3,000 million | 2,080 million |
| Chipgröße | 123 mm² | 160 mm² |
Mobile Grafik
| Veröffentlichungsdatum | Jun 5th, 2017 | May 15th, 2016 |
|---|---|---|
| Generation | Radeon Pro Mac (500 Series) | Crystal System (R9 M400) |
| Produktion | Active | End-of-life |
| Businterface | PCIe 3.0 x8 | PCIe 3.0 x16 |
| Vorgänger | — | Solar System |
| Nachfolger | — | Mobility Radeon |
Takt-Geschwindigkeiten
| GPU-Taktung | 850 MHz | — |
|---|---|---|
| Speicher-Taktung | 1275 MHz 5.1 Gbps effective | 1500 MHz 6 Gbps effective |
| Basis-Taktfrequenz | — | 1000 MHz |
| Boost-Takt | — | 1100 MHz |
Speicher
| Speichergröße | 2 GB | 4 GB |
|---|---|---|
| Speichertyp | GDDR5 | GDDR5 |
| Speicherbus | 128 bit | 128 bit |
| Bandbreite | 81.60 GB/s | 96.00 GB/s |
Render-Konfiguration
| Shading-Einheiten | 768 | 896 |
|---|---|---|
| TMUs | 48 | 56 |
| ROPs | 16 | 16 |
| Compute Units | 12 | 14 |
| Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
| Cache L2 | 1024 KB | 256 KB |
Theoretische Leistung
| Pixelrate | 13.60 GPixel/s | 17.60 GPixel/s |
|---|---|---|
| Texturrate | 40.80 GTexel/s | 61.60 GTexel/s |
| FP16 (half) Leistung | 1,306 GFLOPS (1:1) | — |
| FP32 (float) Leistung | 1,306 GFLOPS | 1.971 TFLOPS |
| FP64 (double) Leistung | 81.60 GFLOPS (1:16) | 123.2 GFLOPS (1:16) |
Boarddesign
| Steckplatzbreite | IGP | — |
|---|---|---|
| TDP | 75 W | unknown |
| Ausgabe | No outputs | No outputs |
| Stromverbindung | None | — |
Grafik-Features
| DirectX | 12 (12_0) | 12 (12_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 | 2.0 |
| Vulkan | 1.2 | 1.2 |
| Shader-Modell | 6.4 | 6.3 |
