NVIDIA GeForce 820M vs NVIDIA GeForce GTX 280M
Processeur graphique
| Nom du GPU | GF117 | G92 |
|---|---|---|
| GPU variant | N15V-GM-B-A2 | N10E-GTX |
| Architecture | Fermi 2.0 | Tesla |
| Fonderie | TSMC | TSMC |
| Taille du processus | 28 nm | 65 nm |
| Transistors | 585 million | 754 million |
| Taille des matrices | 116 mm² | 324 mm² |
Graphiques mobiles
| Date de publication | Nov 27th, 2013 | Mar 3rd, 2009 |
|---|---|---|
| Génération | GeForce 800M | GeForce 200M |
| Production | End-of-life | End-of-life |
| Bus interface | PCIe 2.0 x16 | MXM-IV |
| Prédécesseur | GeForce 700M | GeForce 100M |
| Successeur | GeForce 900M | GeForce 300M |
| Critiques | — | 1 in our database |
Vitesse clock
| GPU clock | 625 MHz | 585 MHz |
|---|---|---|
| Shader clock | 1250 MHz | 1463 MHz |
| Mémoire clock | 900 MHz 1800 Mbps effective | 950 MHz 1900 Mbps effective |
Mémoire
| Taille de la mémoire | 1024 MB | 1024 MB |
|---|---|---|
| Type de mémoire | DDR3 | GDDR3 |
| Bus mémoire | 64 bit | 256 bit |
| Bande passante | 14.40 GB/s | 60.80 GB/s |
Render Config
| Shading units | 96 | 128 |
|---|---|---|
| TMUs | 16 | 64 |
| ROPs | 8 | 16 |
| Comptage SM | 2 | 16 |
| Cache L1 | 64 KB (per SM) | — |
| Cache L2 | 128 KB | 64 KB |
Performance théorique
| Taux de pixel | 2.500 GPixel/s | 9.360 GPixel/s |
|---|---|---|
| Taux de texture | 10.00 GTexel/s | 37.44 GTexel/s |
| FP32 (float) performance | 240.0 GFLOPS | 374.5 GFLOPS |
| FP64 (double) performance | 20.00 GFLOPS (1:12) | — |
Board Design
| TDP | 15 W | 75 W |
|---|---|---|
| Sorties | No outputs | No outputs |
Caractéristiques graphiques
| DirectX | 12 (11_0) | 11.1 (10_0) |
|---|---|---|
| OpenGL | 4.6 | 3.3 |
| OpenCL | 1.1 | 1.1 |
| Vulkan | — | — |
| CUDA | 2.1 | 1.1 |
| Shader model | 5.1 | 4.0 |
