AMD Radeon HD 8670M vs AMD Radeon R5 M420
Processeur graphique
| Nom du GPU | Mars | Jet |
|---|---|---|
| GPU variant | Mars XT | Jet PRO (216-0568010) |
| Architecture | GCN 1.0 | GCN 1.0 |
| Fonderie | TSMC | TSMC |
| Taille du processus | 28 nm | 28 nm |
| Transistors | 950 million | 690 million |
| Taille des matrices | 77 mm² | 56 mm² |
Graphiques mobiles
| Date de publication | Mar 1st, 2013 | May 15th, 2016 |
|---|---|---|
| Génération | Solar System (HD 8600M) | Crystal System (R5 M400) |
| Production | End-of-life | End-of-life |
| Bus interface | PCIe 3.0 x8 | PCIe 3.0 x8 |
| Prédécesseur | London | Solar System |
| Successeur | Crystal System | Mobility Radeon |
Vitesse clock
| Base clock | 775 MHz | 780 MHz |
|---|---|---|
| Boost clock | 825 MHz | 850 MHz |
| Mémoire clock | 900 MHz 1800 Mbps effective | 1000 MHz 2 Gbps effective |
Mémoire
| Taille de la mémoire | 1024 MB | 4 GB |
|---|---|---|
| Type de mémoire | DDR3 | DDR3 |
| Bus mémoire | 64 bit | 64 bit |
| Bande passante | 14.40 GB/s | 16.00 GB/s |
Render Config
| Shading units | 384 | 320 |
|---|---|---|
| TMUs | 24 | 20 |
| ROPs | 8 | 8 |
| Compute units | 6 | 5 |
| Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
| Cache L2 | 128 KB | 128 KB |
Performance théorique
| Taux de pixel | 6.600 GPixel/s | 6.800 GPixel/s |
|---|---|---|
| Taux de texture | 19.80 GTexel/s | 17.00 GTexel/s |
| FP32 (float) performance | 633.6 GFLOPS | 544.0 GFLOPS |
| FP64 (double) performance | — | 34.00 GFLOPS (1:16) |
Board Design
| TDP | unknown | unknown |
|---|---|---|
| Sorties | No outputs | No outputs |
| Taille Slot | — | IGP |
Caractéristiques graphiques
| DirectX | 12 (11_1) | 12 (11_1) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 1.2 |
| Vulkan | 1.2 | 1.2 |
| Shader model | 5.1 | 5.1 |
