NVIDIA GeForce GTX 680MX Mac Edition vs NVIDIA GeForce MX450 30.5W 10Gbps
Processeur graphique
| Nom du GPU | GK104 | TU117 |
|---|---|---|
| GPU variant | N13E-GTX2-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 | Oct 23rd, 2012 | Aug 25th, 2020 |
|---|---|---|
| Génération | GeForce 600M | GeForce MX (4xx) |
| Production | End-of-life | Active |
| Bus interface | PCIe 3.0 x16 | PCIe 4.0 x4 |
| Prédécesseur | GeForce 500M | — |
| Successeur | GeForce 700M | — |
Vitesse clock
| GPU clock | 719 MHz | — |
|---|---|---|
| Mémoire clock | 1250 MHz 5 Gbps effective | 1250 MHz 10 Gbps effective |
| Base clock | — | 1395 MHz |
| Boost clock | — | 1575 MHz |
Mémoire
| Taille de la mémoire | 2 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 | 23.01 GPixel/s | 50.40 GPixel/s |
|---|---|---|
| Taux de texture | 92.03 GTexel/s | 88.20 GTexel/s |
| FP32 (float) performance | 2.209 TFLOPS | 2.822 TFLOPS |
| FP64 (double) performance | 92.03 GFLOPS (1:24) | 88.20 GFLOPS (1:32) |
| FP16 (half) performance | — | 5.645 TFLOPS (2:1) |
Board Design
| TDP | 122 W | 31 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 |
