AMD Radeon HD 8850M vs AMD Radeon R7 M445
Processeur graphique
| Nom du GPU | Venus | Meso |
|---|---|---|
| GPU variant | Venus PRO | Meso PRO (216-0864032) |
| Architecture | GCN 1.0 | GCN 3.0 |
| Fonderie | TSMC | TSMC |
| Taille du processus | 28 nm | 28 nm |
| Transistors | 1,500 million | 1,550 million |
| Taille des matrices | 123 mm² | 125 mm² |
Graphiques mobiles
| Date de publication | Apr 1st, 2013 | May 15th, 2016 |
|---|---|---|
| Génération | Solar System (HD 8800M) | Crystal System (R7 M400) |
| Production | End-of-life | End-of-life |
| Bus interface | PCIe 3.0 x16 | PCIe 3.0 x8 |
| Prédécesseur | London | Solar System |
| Successeur | Crystal System | Mobility Radeon |
Vitesse clock
| Base clock | 575 MHz | 780 MHz |
|---|---|---|
| Boost clock | 625 MHz | 920 MHz |
| Mémoire clock | 1000 MHz 2 Gbps effective | 1000 MHz 4 Gbps effective |
Mémoire
| Taille de la mémoire | 2 GB | 4 GB |
|---|---|---|
| Type de mémoire | DDR3 | GDDR5 |
| Bus mémoire | 128 bit | 64 bit |
| Bande passante | 32.00 GB/s | 32.00 GB/s |
Render Config
| Shading units | 640 | 320 |
|---|---|---|
| TMUs | 40 | 20 |
| ROPs | 16 | 8 |
| Compute units | 10 | 5 |
| Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
| Cache L2 | 256 KB | 128 KB |
Performance théorique
| Taux de pixel | 10.00 GPixel/s | 7.360 GPixel/s |
|---|---|---|
| Taux de texture | 25.00 GTexel/s | 18.40 GTexel/s |
| FP32 (float) performance | 800.0 GFLOPS | 588.8 GFLOPS |
| FP64 (double) performance | 50.00 GFLOPS (1:16) | 36.80 GFLOPS (1:16) |
| FP16 (half) performance | — | 588.8 GFLOPS (1:1) |
Board Design
| TDP | unknown | unknown |
|---|---|---|
| Sorties | No outputs | No outputs |
| Taille Slot | — | IGP |
Caractéristiques graphiques
| DirectX | 12 (11_1) | 12 (12_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 2.0 |
| Vulkan | 1.2 | 1.2 |
| Shader model | 5.1 | 6.0 |
