NVIDIA GeForce 830A vs NVIDIA GeForce GT 650M Mac Edition
Processeur graphique
| Nom du GPU | GM108 | GK107 |
|---|---|---|
| Architecture | Maxwell | Kepler |
| Fonderie | TSMC | TSMC |
| Taille du processus | 28 nm | 28 nm |
| Transistors | unknown | 1,270 million |
| Taille des matrices | unknown | 118 mm² |
| GPU variant | — | N13P-GT-W-A2 |
Graphiques mobiles
| Date de publication | Jul 22nd, 2014 | Jul 12th, 2012 |
|---|---|---|
| Génération | GeForce 800A | GeForce 600M |
| Production | End-of-life | End-of-life |
| Bus interface | PCIe 3.0 x8 | PCIe 3.0 x16 |
| Prédécesseur | GeForce 700A | GeForce 500M |
| Successeur | GeForce 900A | GeForce 700M |
Vitesse clock
| Base clock | 1082 MHz | — |
|---|---|---|
| Boost clock | 1150 MHz | — |
| Mémoire clock | 900 MHz 1800 Mbps effective | 1254 MHz 5 Gbps effective |
| GPU clock | — | 900 MHz |
Mémoire
| Taille de la mémoire | 2 GB | 512 MB |
|---|---|---|
| Type de mémoire | DDR3 | GDDR5 |
| Bus mémoire | 64 bit | 128 bit |
| Bande passante | 14.40 GB/s | 80.26 GB/s |
Render Config
| Shading units | 256 | 384 |
|---|---|---|
| TMUs | 16 | 32 |
| ROPs | 8 | 16 |
| Comptage SMM | 2 | — |
| Cache L1 | 64 KB (per SMM) | 16 KB (per SMX) |
| Cache L2 | 1024 KB | 256 KB |
| Comptage SMX | — | 2 |
Performance théorique
| Taux de pixel | 9.200 GPixel/s | 7.200 GPixel/s |
|---|---|---|
| Taux de texture | 18.40 GTexel/s | 28.80 GTexel/s |
| FP32 (float) performance | 588.8 GFLOPS | 691.2 GFLOPS |
| FP64 (double) performance | 18.40 GFLOPS (1:32) | 28.80 GFLOPS (1:24) |
Board Design
| Taille Slot | IGP | — |
|---|---|---|
| TDP | 33 W | 45 W |
| Sorties | No outputs | No outputs |
Caractéristiques graphiques
| DirectX | 12 (11_0) | 12 (11_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 3.0 | 3.0 |
| Vulkan | 1.1 | 1.1 |
| CUDA | 5.0 | 3.0 |
| Shader model | 5.1 | 5.1 |
