Nom du GPU | Amethyst | Polaris 21 |
---|---|---|
GPU variant | Amethyst XT | Polaris 21 XL |
Architecture | GCN 3.0 | GCN 4.0 |
Fonderie | TSMC | GlobalFoundries |
Taille du processus | 28 nm | 14 nm |
Transistors | 5,000 million | 3,000 million |
Taille des matrices | 366 mm² | 123 mm² |
Date de publication | May 5th, 2015 | — |
---|---|---|
Génération | Crystal System (R9 M300) | — |
Production | End-of-life | — |
Bus interface | PCIe 3.0 x16 | — |
Prédécesseur | Solar System | — |
Successeur | Mobility Radeon | — |
GPU clock | 723 MHz | — |
---|---|---|
Mémoire clock | 1250 MHz 5 Gbps effective | 1750 MHz 7 Gbps effective |
Base clock | — | 1090 MHz |
Boost clock | — | 1175 MHz |
Taille de la mémoire | 4 GB | 4 GB |
---|---|---|
Type de mémoire | GDDR5 | GDDR5 |
Bus mémoire | 256 bit | 128 bit |
Bande passante | 160.0 GB/s | 112.0 GB/s |
Shading units | 2048 | 896 |
---|---|---|
TMUs | 128 | 56 |
ROPs | 32 | 16 |
Compute units | 32 | 14 |
Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
Cache L2 | 512 KB | 1024 KB |
Taux de pixel | 23.14 GPixel/s | 18.80 GPixel/s |
---|---|---|
Taux de texture | 92.54 GTexel/s | 65.80 GTexel/s |
FP16 (half) performance | 2.961 TFLOPS (1:1) | 2.106 TFLOPS (1:1) |
FP32 (float) performance | 2.961 TFLOPS | 2.106 TFLOPS |
FP64 (double) performance | 185.1 GFLOPS (1:16) | 131.6 GFLOPS (1:16) |
Taille Slot | MXM Module | Dual-slot |
---|---|---|
TDP | 75 W | 45 W |
Sorties | No outputs | 1x DVI1x HDMI1x DisplayPort |
Connecteurs de puissance | None | None |
Board number | C608 | C981-21 C994-71 |
Longueur | — | 170 mm 6.7 inches |
Suggestions pour le PSU | — | 200 W |
DirectX | 12 (12_0) | 12 (12_0) |
---|---|---|
OpenGL | 4.6 | 4.6 |
OpenCL | 2.0 | 2.1 |
Vulkan | 1.2 | 1.2 |
Shader model | 6.3 | 6.4 |
Date de publication | — | Jul 4th, 2017 |
---|---|---|
Génération | — | Polaris |
Production | — | Active |
Bus interface | — | PCIe 3.0 x8 |
Prédécesseur | — | Arctic Islands |
Successeur | — | Vega |