NVIDIA GeForce 945M vs NVIDIA GeForce GTX 470M
Processeur graphique
| Nom du GPU | GM107 | GF104 |
|---|---|---|
| Architecture | Maxwell | Fermi |
| Fonderie | TSMC | TSMC |
| Taille du processus | 28 nm | 40 nm |
| Transistors | 1,870 million | 1,950 million |
| Taille des matrices | 148 mm² | 332 mm² |
| GPU variant | — | N11E-GT |
Graphiques mobiles
| Date de publication | Oct 27th, 2015 | Sep 3rd, 2010 |
|---|---|---|
| Génération | GeForce 900M | GeForce 400M |
| Production | End-of-life | End-of-life |
| Bus interface | MXM-B (3.0) | MXM-B (3.0) |
| Prédécesseur | GeForce 800M | GeForce 300M |
| Successeur | GeForce 10 Mobile | GeForce 500M |
Vitesse clock
| Base clock | 928 MHz | — |
|---|---|---|
| Boost clock | 1020 MHz | — |
| Mémoire clock | 900 MHz 1800 Mbps effective | 750 MHz 3 Gbps effective |
| GPU clock | — | 535 MHz |
| Shader clock | — | 1070 MHz |
Mémoire
| Taille de la mémoire | 2 GB | 1536 MB |
|---|---|---|
| Type de mémoire | DDR3 | GDDR5 |
| Bus mémoire | 128 bit | 192 bit |
| Bande passante | 28.80 GB/s | 72.00 GB/s |
Render Config
| Shading units | 640 | 288 |
|---|---|---|
| TMUs | 40 | 48 |
| ROPs | 16 | 24 |
| Comptage SMM | 5 | — |
| Cache L1 | 64 KB (per SMM) | 64 KB (per SM) |
| Cache L2 | 2 MB | 384 KB |
| Comptage SM | — | 6 |
Performance théorique
| Taux de pixel | 16.32 GPixel/s | 6.420 GPixel/s |
|---|---|---|
| Taux de texture | 40.80 GTexel/s | 25.68 GTexel/s |
| FP32 (float) performance | 1,306 GFLOPS | 616.3 GFLOPS |
| FP64 (double) performance | 40.80 GFLOPS (1:32) | 51.36 GFLOPS (1:12) |
Board Design
| Taille Slot | MXM Module | MXM Module |
|---|---|---|
| TDP | 75 W | 75 W |
| Sorties | No outputs | No outputs |
| Connecteurs de puissance | — | None |
| Board number | — | P1044 |
Caractéristiques graphiques
| DirectX | 12 (11_0) | 12 (11_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 3.0 | 1.1 |
| Vulkan | 1.1 | — |
| CUDA | 5.0 | 2.1 |
| Shader model | 5.1 | 5.1 |
