NVIDIA GeForce GTX 780M Mac Edition vs NVIDIA GeForce MX450 25W
Processeur graphique
| Nom du GPU | GK104 | TU117 |
|---|---|---|
| GPU variant | N14E-GTX-A2 | N18S-G5 |
| Architecture | Kepler | Turing |
| Fonderie | TSMC | TSMC |
| Taille du processus | 28 nm | 12 nm |
| Transistors | 3,540 million | 4,700 million |
| Taille des matrices | 294 mm² | 200 mm² |
Graphiques mobiles
| Date de publication | Nov 8th, 2013 | Aug 15th, 2020 |
|---|---|---|
| Génération | GeForce 700M | GeForce MX (4xx) |
| Production | End-of-life | Active |
| Bus interface | MXM-B (3.0) | PCIe 4.0 x4 |
| Prédécesseur | GeForce 600M | — |
| Successeur | GeForce 800M | — |
Vitesse clock
| Base clock | 771 MHz | 720 MHz |
|---|---|---|
| Boost clock | 797 MHz | 930 MHz |
| Mémoire clock | 1250 MHz 5 Gbps effective | 1250 MHz 10 Gbps effective |
Mémoire
| Taille de la mémoire | 4 GB | 2 GB |
|---|---|---|
| Type de mémoire | GDDR5 | GDDR6 |
| Bus mémoire | 256 bit | 64 bit |
| Bande passante | 160.0 GB/s | 80.00 GB/s |
Render Config
| Shading units | 1536 | 896 |
|---|---|---|
| TMUs | 128 | 56 |
| ROPs | 32 | 32 |
| Comptage SMX | 8 | — |
| Cache L1 | 16 KB (per SMX) | 64 KB (per SM) |
| Cache L2 | 512 KB | 512 KB |
| Comptage SM | — | 14 |
Performance théorique
| Taux de pixel | 25.50 GPixel/s | 29.76 GPixel/s |
|---|---|---|
| Taux de texture | 102.0 GTexel/s | 52.08 GTexel/s |
| FP32 (float) performance | 2.448 TFLOPS | 1.667 TFLOPS |
| FP64 (double) performance | 102.0 GFLOPS (1:24) | 52.08 GFLOPS (1:32) |
| FP16 (half) performance | — | 3.333 TFLOPS (2:1) |
Board Design
| Taille Slot | MXM Module | — |
|---|---|---|
| TDP | 122 W | 25 W |
| Sorties | No outputs | No outputs |
| Connecteurs de puissance | — | None |
Caractéristiques graphiques
| DirectX | 12 (11_0) | 12 (12_1) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 3.0 | 3.0 |
| Vulkan | 1.1 | 1.2 |
| CUDA | 3.0 | 7.5 |
| Shader model | 5.1 | 6.6 |
