GPU Name | Polaris 21 | Amethyst |
---|---|---|
GPU Variante | Polaris 21 XT (215-0908004) | Amethyst XT |
Architektur | GCN 4.0 | GCN 3.0 |
Hersteller | GlobalFoundries | TSMC |
Prozessgröße | 14 nm | 28 nm |
Transistoren | 3,000 million | 5,000 million |
Chipgröße | 123 mm² | 366 mm² |
Veröffentlichungsdatum | Jul 16th, 2018 | May 15th, 2016 |
---|---|---|
Generation | Radeon Pro Mac (500X Series) | Crystal System (R9 M400) |
Produktion | Active | End-of-life |
Businterface | PCIe 3.0 x8 | MXM-B (3.0) |
Vorgänger | — | Solar System |
Nachfolger | — | Mobility Radeon |
GPU-Taktung | 1004 MHz | 723 MHz |
---|---|---|
Speicher-Taktung | 1470 MHz 5.9 Gbps effective | 1250 MHz 5 Gbps effective |
Speichergröße | 4 GB | 8 GB |
---|---|---|
Speichertyp | GDDR5 | GDDR5 |
Speicherbus | 128 bit | 256 bit |
Bandbreite | 94.08 GB/s | 160.0 GB/s |
Shading-Einheiten | 1024 | 2048 |
---|---|---|
TMUs | 64 | 128 |
ROPs | 16 | 32 |
Compute Units | 16 | 32 |
Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
Cache L2 | 1024 KB | 512 KB |
Pixelrate | 16.06 GPixel/s | 23.14 GPixel/s |
---|---|---|
Texturrate | 64.26 GTexel/s | 92.54 GTexel/s |
FP16 (half) Leistung | 2.056 TFLOPS (1:1) | 2.961 TFLOPS (1:1) |
FP32 (float) Leistung | 2.056 TFLOPS | 2.961 TFLOPS |
FP64 (double) Leistung | 128.5 GFLOPS (1:16) | 185.1 GFLOPS (1:16) |
Steckplatzbreite | IGP | MXM Module |
---|---|---|
TDP | 75 W | 250 W |
Ausgabe | No outputs | No outputs |
Stromverbindung | None | None |
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 |