Nom du GPU | Pitcairn | Polaris 21 |
---|---|---|
GPU variant | Pitcairn PRO (215-0828062) | Polaris 21M XT |
Architecture | GCN 1.0 | GCN 4.0 |
Fonderie | TSMC | GlobalFoundries |
Taille du processus | 28 nm | 14 nm |
Transistors | 2,800 million | 3,000 million |
Taille des matrices | 212 mm² | 123 mm² |
Date de publication | Nov 23rd, 2014 | Apr 11th, 2018 |
---|---|---|
Génération | Crystal System (R9 M200) | Mobility Radeon (RX M500X) |
Prédécesseur | Solar System | Crystal System |
Successeur | Mobility Radeon | — |
Production | End-of-life | Active |
Bus interface | PCIe 3.0 x16 | MXM-B (3.0) |
Base clock | 850 MHz | — |
---|---|---|
Boost clock | 975 MHz | — |
Mémoire clock | 1365 MHz 5.5 Gbps effective | 1450 MHz 5.8 Gbps effective |
GPU clock | — | 1275 MHz |
Taille de la mémoire | 2 GB | 4 GB |
---|---|---|
Type de mémoire | GDDR5 | GDDR5 |
Bus mémoire | 256 bit | 128 bit |
Bande passante | 174.7 GB/s | 92.80 GB/s |
Shading units | 1024 | 1024 |
---|---|---|
TMUs | 64 | 64 |
ROPs | 32 | 16 |
Compute units | 16 | 16 |
Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
Cache L2 | 512 KB | 1024 KB |
Taux de pixel | 31.20 GPixel/s | 20.40 GPixel/s |
---|---|---|
Taux de texture | 62.40 GTexel/s | 81.60 GTexel/s |
FP32 (float) performance | 1.997 TFLOPS | 2.611 TFLOPS |
FP64 (double) performance | 124.8 GFLOPS (1:16) | 163.2 GFLOPS (1:16) |
FP16 (half) performance | — | 2.611 TFLOPS (1:1) |
Taille Slot | MXM Module | MXM Module |
---|---|---|
TDP | 80 W | 65 W |
Sorties | No outputs | No outputs |
Connecteurs de puissance | None | None |
Board number | C608 | — |
DirectX | 12 (11_1) | 12 (12_0) |
---|---|---|
OpenGL | 4.6 | 4.6 |
OpenCL | 1.2 | 2.1 |
Vulkan | 1.2 | 1.2 |
Shader model | 5.1 | 6.4 |