AMD Radeon HD 7970M vs NVIDIA Quadro P620 Mobile
Processeur graphique
| Nom du GPU | Wimbledon | GP107 |
|---|---|---|
| GPU variant | Wimbledon XT (216-0836036) | — |
| Architecture | GCN 1.0 | Pascal |
| Fonderie | TSMC | Samsung |
| Taille du processus | 28 nm | 14 nm |
| Transistors | 2,800 million | 3,300 million |
| Taille des matrices | 212 mm² | 132 mm² |
Graphiques mobiles
| Date de publication | Apr 24th, 2012 | Feb 1st, 2018 |
|---|---|---|
| Génération | London (HD 7900M) | Quadro Mobile (Px200) |
| Production | End-of-life | End-of-life |
| Bus interface | MXM-B (3.0) | PCIe 3.0 x16 |
| Prédécesseur | Vancouver | — |
| Successeur | Solar System | — |
Vitesse clock
| GPU clock | 850 MHz | — |
|---|---|---|
| Mémoire clock | 1200 MHz 4.8 Gbps effective | 1502 MHz 6 Gbps effective |
| Base clock | — | 1177 MHz |
| Boost clock | — | 1443 MHz |
Mémoire
| Taille de la mémoire | 2 GB | 4 GB |
|---|---|---|
| Type de mémoire | GDDR5 | GDDR5 |
| Bus mémoire | 256 bit | 128 bit |
| Bande passante | 153.6 GB/s | 96.13 GB/s |
Render Config
| Shading units | 1280 | 512 |
|---|---|---|
| TMUs | 80 | 32 |
| ROPs | 32 | 16 |
| Compute units | 20 | — |
| Cache L1 | 16 KB (per CU) | 48 KB (per SM) |
| Cache L2 | 512 KB | 1024 KB |
| Comptage SM | — | 4 |
Performance théorique
| Taux de pixel | 27.20 GPixel/s | 23.09 GPixel/s |
|---|---|---|
| Taux de texture | 68.00 GTexel/s | 46.18 GTexel/s |
| FP32 (float) performance | 2.176 TFLOPS | 1,478 GFLOPS |
| FP64 (double) performance | 136.0 GFLOPS (1:16) | 46.18 GFLOPS (1:32) |
| FP16 (half) performance | — | 23.09 GFLOPS (1:64) |
Board Design
| Taille Slot | MXM Module | IGP |
|---|---|---|
| TDP | 100 W | 40 W |
| Sorties | No outputs | No outputs |
| Connecteurs de puissance | None | None |
| Board number | C429 | — |
Caractéristiques graphiques
| DirectX | 12 (11_1) | 12 (12_1) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 3.0 |
| Vulkan | 1.2 | 1.2 |
| Shader model | 5.1 | 6.4 |
| CUDA | — | 6.1 |
