NVIDIA GeForce 820A vs NVIDIA Quadro FX 3800M
Processeur graphique
| Nom du GPU | GF117 | G92 |
|---|---|---|
| GPU variant | N15V-GM | N10E-GLM3-B2 |
| 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 | Mar 17th, 2014 | Aug 14th, 2008 |
|---|---|---|
| Génération | GeForce 800A | Quadro FX Mobile (x800M) |
| Production | End-of-life | End-of-life |
| Bus interface | PCIe 2.0 x16 | MXM-B (3.0) |
| Prédécesseur | GeForce 700A | — |
| Successeur | GeForce 900A | Quadro Mobile |
| Critiques | — | 26 in our database |
Vitesse clock
| GPU clock | 775 MHz | 675 MHz |
|---|---|---|
| Shader clock | 1550 MHz | 1650 MHz |
| Mémoire clock | 900 MHz 1800 Mbps effective | 1000 MHz 2 Gbps 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 | 64.00 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 | 3.100 GPixel/s | 10.80 GPixel/s |
|---|---|---|
| Taux de texture | 12.40 GTexel/s | 43.20 GTexel/s |
| FP32 (float) performance | 297.6 GFLOPS | 422.4 GFLOPS |
| FP64 (double) performance | 24.80 GFLOPS (1:12) | — |
Board Design
| TDP | 15 W | 100 W |
|---|---|---|
| Sorties | No outputs | No outputs |
| Taille Slot | — | MXM Module |
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 |
