Nom du GPU | Vega 20 | Amethyst |
---|---|---|
GPU variant | Vega 20 GL | Amethyst PRO (216-0872004) |
Architecture | GCN 5.1 | GCN 3.0 |
Fonderie | TSMC | TSMC |
Taille du processus | 7 nm | 28 nm |
Transistors | 13,230 million | 5,000 million |
Taille des matrices | 331 mm² | 366 mm² |
Date de publication | Nov 18th, 2018 | — |
---|---|---|
Génération | Radeon Instinct | — |
Production | Active | — |
Bus interface | PCIe 4.0 x16 | — |
Base clock | 1200 MHz | — |
---|---|---|
Boost clock | 1800 MHz | — |
Mémoire clock | 1000 MHz 2 Gbps effective | 1365 MHz 5.5 Gbps effective |
GPU clock | — | 834 MHz |
Taille de la mémoire | 32 GB | 2 GB |
---|---|---|
Type de mémoire | HBM2 | GDDR5 |
Bus mémoire | 4096 bit | 256 bit |
Bande passante | 1,024 GB/s | 174.7 GB/s |
Shading units | 4096 | 1792 |
---|---|---|
TMUs | 256 | 112 |
ROPs | 64 | 32 |
Compute units | 64 | 28 |
Cache L1 | 16 KB (per CU) | — |
Cache L2 | 4 MB | — |
Taux de pixel | 115.2 GPixel/s | 26.69 GPixel/s |
---|---|---|
Taux de texture | 460.8 GTexel/s | 93.41 GTexel/s |
FP16 (half) performance | 29.49 TFLOPS (2:1) | — |
FP32 (float) performance | 14.75 TFLOPS | 2.989 TFLOPS |
FP64 (double) performance | 7.373 TFLOPS (1:2) | 373.6 GFLOPS (1:8) |
Taille Slot | Dual-slot | MXM Module |
---|---|---|
Longueur | 267 mm 10.5 inches | — |
Taille | 111 mm 4.4 inches | — |
TDP | 300 W | 250 W |
Suggestions pour le PSU | 700 W | — |
Sorties | 1x mini-DisplayPort | No outputs |
Connecteurs de puissance | 1x 6-pin + 1x 8-pin | None |
DirectX | 12 (12_1) | 12 (12_0) |
---|---|---|
OpenGL | 4.6 | 4.6 |
OpenCL | 2.1 | 2.0 |
Vulkan | 1.2 | 1.2 |
Shader model | 6.4 | 6.3 |
Date de publication | — | May 5th, 2015 |
---|---|---|
Génération | — | Crystal System (R9 M300) |
Production | — | End-of-life |
Bus interface | — | MXM-B (3.0) |
Prédécesseur | — | Solar System |
Successeur | — | Mobility Radeon |