AMD Radeon 550X Mobile vs AMD Radeon HD 6970M Mac Edition
Grafikprozessor
| GPU Name | Polaris 23 | Blackcomb |
|---|---|---|
| GPU Variante | Polaris 23 MXT | Blackcomb XT (216-0811000) |
| Architektur | GCN 4.0 | TeraScale 2 |
| Hersteller | GlobalFoundries | TSMC |
| Prozessgröße | 14 nm | 40 nm |
| Transistoren | 2,200 million | 1,700 million |
| Chipgröße | 103 mm² | 212 mm² |
Mobile Grafik
| Veröffentlichungsdatum | Apr 11th, 2018 | Aug 25th, 2011 |
|---|---|---|
| Generation | Mobility Radeon (M500X) | Vancouver (HD 6900M) |
| Produktion | Active | End-of-life |
| Businterface | PCIe 3.0 x8 | MXM-B (3.0) |
| Vorgänger | Crystal System | Manhattan |
| Nachfolger | — | London |
Takt-Geschwindigkeiten
| Basis-Taktfrequenz | 1100 MHz | — |
|---|---|---|
| Boost-Takt | 1287 MHz | — |
| Speicher-Taktung | 1500 MHz 6 Gbps effective | 900 MHz 3.6 Gbps effective |
| GPU-Taktung | — | 680 MHz |
Speicher
| Speichergröße | 4 GB | 2 GB |
|---|---|---|
| Speichertyp | GDDR5 | GDDR5 |
| Speicherbus | 64 bit | 256 bit |
| Bandbreite | 48.00 GB/s | 115.2 GB/s |
Render-Konfiguration
| Shading-Einheiten | 640 | 960 |
|---|---|---|
| TMUs | 40 | 48 |
| ROPs | 16 | 32 |
| Compute Units | 10 | 12 |
| Cache L1 | 16 KB (per CU) | 8 KB (per CU) |
| Cache L2 | 256 KB | 512 KB |
Theoretische Leistung
| Pixelrate | 20.59 GPixel/s | 21.76 GPixel/s |
|---|---|---|
| Texturrate | 51.48 GTexel/s | 32.64 GTexel/s |
| FP16 (half) Leistung | 1.647 TFLOPS (1:1) | — |
| FP32 (float) Leistung | 1.647 TFLOPS | 1,306 GFLOPS |
| FP64 (double) Leistung | 103.0 GFLOPS (1:16) | — |
Boarddesign
| Steckplatzbreite | IGP | MXM Module |
|---|---|---|
| TDP | 50 W | 75 W |
| Ausgabe | No outputs | No outputs |
| Stromverbindung | None | None |
| Board-Nummer | — | C296 |
Grafik-Features
| DirectX | 12 (12_0) | 11.2 (11_0) |
|---|---|---|
| OpenGL | 4.6 | 4.4 |
| OpenCL | 2.1 | 1.2 |
| Vulkan | 1.2 | — |
| Shader-Modell | 6.4 | 5.0 |
