AMD Radeon 620 Mobile vs AMD Radeon HD 8870 OEM
Processeur graphique
| Nom du GPU | Polaris 24 | Pitcairn |
|---|---|---|
| GPU variant | Polaris 24 XL | Pitcairn XT (215-0828047) |
| Architecture | GCN 3.0 | GCN 1.0 |
| Fonderie | TSMC | TSMC |
| Taille du processus | 28 nm | 28 nm |
| Transistors | 1,550 million | 2,800 million |
| Taille des matrices | 125 mm² | 212 mm² |
Graphiques mobiles
| Date de publication | May 13th, 2019 | — |
|---|---|---|
| Génération | Mobility Radeon (M600) | — |
| Production | End-of-life | — |
| Bus interface | PCIe 3.0 x8 | — |
| Prédécesseur | Crystal System | — |
Vitesse clock
| Base clock | 730 MHz | — |
|---|---|---|
| Boost clock | 1024 MHz | — |
| Mémoire clock | 900 MHz 1800 Mbps effective | 1200 MHz 4.8 Gbps effective |
| GPU clock | — | 1000 MHz |
Mémoire
| Taille de la mémoire | 2 GB | 2 GB |
|---|---|---|
| Type de mémoire | DDR3 | GDDR5 |
| Bus mémoire | 64 bit | 256 bit |
| Bande passante | 14.40 GB/s | 153.6 GB/s |
Render Config
| Shading units | 384 | 1280 |
|---|---|---|
| TMUs | 24 | 80 |
| ROPs | 8 | 32 |
| Compute units | 6 | 20 |
| Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
| Cache L2 | 128 KB | 512 KB |
Performance théorique
| Taux de pixel | 8.192 GPixel/s | 32.00 GPixel/s |
|---|---|---|
| Taux de texture | 24.58 GTexel/s | 80.00 GTexel/s |
| FP16 (half) performance | 786.4 GFLOPS (1:1) | — |
| FP32 (float) performance | 786.4 GFLOPS | 2.560 TFLOPS |
| FP64 (double) performance | 49.15 GFLOPS (1:16) | 160.0 GFLOPS (1:16) |
Board Design
| Taille Slot | IGP | Dual-slot |
|---|---|---|
| TDP | 50 W | 175 W |
| Sorties | No outputs | 1x DVI1x HDMI2x mini-DisplayPort |
| Connecteurs de puissance | None | 2x 6-pin |
| Longueur | — | 241 mm 9.5 inches |
| Suggestions pour le PSU | — | 450 W |
| Board number | — | C401 |
Caractéristiques graphiques
| DirectX | 12 (12_0) | 12 (11_1) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 1.2 |
| Vulkan | 1.2 | 1.2 |
| Shader model | 6.3 | 5.1 |
AUTRES CARACTÉRISTIQUES
Carte graphique
| Date de publication | — | Jan 8th, 2013 |
|---|---|---|
| Génération | — | Sea Islands |
| Production | — | End-of-life |
| Bus interface | — | PCIe 3.0 x16 |
| Prédécesseur | — | Southern Islands |
| Successeur | — | Volcanic Islands |
