NVIDIA GeForce 840M versus NVIDIA GeForce GT 820M
Comparaison des cartes vidéo NVIDIA GeForce 840M and NVIDIA GeForce GT 820M pour tous les caractéristiques connus dans les catégories suivants: Essentiel, Infos techniques, Sorties et ports de vidéo, Compatibilité, dimensions et exigences, Soutien API, Mémoire, Technologies. Analyse du performance de référence des cartes vidéo: PassMark - G3D Mark, PassMark - G2D Mark, Geekbench - OpenCL, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Fps), 3DMark Fire Strike - Graphics Score.
Différences
Raisons pour considerer le NVIDIA GeForce 840M
- La carte vidéo est plus nouvelle: date de sortie 3 mois plus tard
- Environ 33% plus haut vitesse du noyau: 1029 MHz versus 775 MHz
- Environ 45% taux plus haut de remplissage de la texture: 17.98 GTexel / s versus 12.4 GTexel / s
- 4x plus de pipelines: 384 versus 96
- 2.9x de meilleur performance á point flottant: 863.2 gflops versus 297.6 gflops
- 4x plus de taille maximale de mémoire : 4 GB versus 1 GB
- Environ 11% plus haut de vitesse de mémoire: 2002 MHz versus 1800 MHz
- Environ 99% meilleur performance en PassMark - G3D Mark: 1096 versus 551
- Environ 5% meilleur performance en PassMark - G2D Mark: 151 versus 144
- 2.3x meilleur performance en Geekbench - OpenCL: 5771 versus 2530
- 8.5x meilleur performance en CompuBench 1.5 Desktop - Face Detection (mPixels/s): 22.848 versus 2.692
- Environ 1% meilleur performance en CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 162.594 versus 161.29
- 2.2x meilleur performance en CompuBench 1.5 Desktop - T-Rex (Frames/s): 1.237 versus 0.55
- Environ 78% meilleur performance en CompuBench 1.5 Desktop - Video Composition (Frames/s): 21.15 versus 11.858
- 5.4x meilleur performance en CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 95.545 versus 17.753
- Environ 65% meilleur performance en GFXBench 4.0 - Car Chase Offscreen (Frames): 2085 versus 1263
- Environ 10% meilleur performance en GFXBench 4.0 - Manhattan (Frames): 2736 versus 2479
- Environ 65% meilleur performance en GFXBench 4.0 - Car Chase Offscreen (Fps): 2085 versus 1263
- Environ 10% meilleur performance en GFXBench 4.0 - Manhattan (Fps): 2736 versus 2479
| Caractéristiques | |
| Date de sortie | 12 March 2014 versus 27 November 2013 |
| Vitesse du noyau | 1029 MHz versus 775 MHz |
| Taux de remplissage de la texture | 17.98 GTexel / s versus 12.4 GTexel / s |
| Pipelines | 384 versus 96 |
| Performance á point flottant | 863.2 gflops versus 297.6 gflops |
| Taille de mémore maximale | 4 GB versus 1 GB |
| Vitesse de mémoire | 2002 MHz versus 1800 MHz |
| Référence | |
| PassMark - G3D Mark | 1096 versus 551 |
| PassMark - G2D Mark | 151 versus 144 |
| Geekbench - OpenCL | 5771 versus 2530 |
| CompuBench 1.5 Desktop - Face Detection (mPixels/s) | 22.848 versus 2.692 |
| CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) | 162.594 versus 161.29 |
| CompuBench 1.5 Desktop - T-Rex (Frames/s) | 1.237 versus 0.55 |
| CompuBench 1.5 Desktop - Video Composition (Frames/s) | 21.15 versus 11.858 |
| CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) | 95.545 versus 17.753 |
| GFXBench 4.0 - Car Chase Offscreen (Frames) | 2085 versus 1263 |
| GFXBench 4.0 - Manhattan (Frames) | 2736 versus 2479 |
| GFXBench 4.0 - Car Chase Offscreen (Fps) | 2085 versus 1263 |
| GFXBench 4.0 - Manhattan (Fps) | 2736 versus 2479 |
Raisons pour considerer le NVIDIA GeForce GT 820M
- 2.2x consummation d’énergie moyen plus bas: 15 Watt versus 33 Watt
- Environ 4% meilleur performance en GFXBench 4.0 - T-Rex (Frames): 3327 versus 3191
- Environ 4% meilleur performance en GFXBench 4.0 - T-Rex (Fps): 3327 versus 3191
| Caractéristiques | |
| Thermal Design Power (TDP) | 15 Watt versus 33 Watt |
| Référence | |
| GFXBench 4.0 - T-Rex (Frames) | 3327 versus 3191 |
| GFXBench 4.0 - T-Rex (Fps) | 3327 versus 3191 |
Comparer les références
GPU 1: NVIDIA GeForce 840M
GPU 2: NVIDIA GeForce GT 820M
| PassMark - G3D Mark |
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| PassMark - G2D Mark |
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| Geekbench - OpenCL |
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| CompuBench 1.5 Desktop - Face Detection (mPixels/s) |
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| CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) |
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| CompuBench 1.5 Desktop - T-Rex (Frames/s) |
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| CompuBench 1.5 Desktop - Video Composition (Frames/s) |
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| CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) |
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| GFXBench 4.0 - Car Chase Offscreen (Frames) |
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| GFXBench 4.0 - Manhattan (Frames) |
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| GFXBench 4.0 - T-Rex (Frames) |
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| GFXBench 4.0 - Car Chase Offscreen (Fps) |
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| GFXBench 4.0 - Manhattan (Fps) |
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| GFXBench 4.0 - T-Rex (Fps) |
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| Nom | NVIDIA GeForce 840M | NVIDIA GeForce GT 820M |
|---|---|---|
| PassMark - G3D Mark | 1096 | 551 |
| PassMark - G2D Mark | 151 | 144 |
| Geekbench - OpenCL | 5771 | 2530 |
| CompuBench 1.5 Desktop - Face Detection (mPixels/s) | 22.848 | 2.692 |
| CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) | 162.594 | 161.29 |
| CompuBench 1.5 Desktop - T-Rex (Frames/s) | 1.237 | 0.55 |
| CompuBench 1.5 Desktop - Video Composition (Frames/s) | 21.15 | 11.858 |
| CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) | 95.545 | 17.753 |
| GFXBench 4.0 - Car Chase Offscreen (Frames) | 2085 | 1263 |
| GFXBench 4.0 - Manhattan (Frames) | 2736 | 2479 |
| GFXBench 4.0 - T-Rex (Frames) | 3191 | 3327 |
| GFXBench 4.0 - Car Chase Offscreen (Fps) | 2085 | 1263 |
| GFXBench 4.0 - Manhattan (Fps) | 2736 | 2479 |
| GFXBench 4.0 - T-Rex (Fps) | 3191 | 3327 |
| 3DMark Fire Strike - Graphics Score | 503 |
Comparer les caractéristiques
| NVIDIA GeForce 840M | NVIDIA GeForce GT 820M | |
|---|---|---|
Essentiel |
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| Architecture | Maxwell | Fermi 2.0 |
| Nom de code | GM108 | GF117 |
| Date de sortie | 12 March 2014 | 27 November 2013 |
| Position dans l’évaluation de la performance | 1235 | 1366 |
| Genre | Laptop | Desktop |
Infos techniques |
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| Vitesse augmenté | 1124 MHz | |
| Vitesse du noyau | 1029 MHz | 775 MHz |
| Performance á point flottant | 863.2 gflops | 297.6 gflops |
| Processus de fabrication | 28 nm | 28 nm |
| Pipelines | 384 | 96 |
| Taux de remplissage de la texture | 17.98 GTexel / s | 12.4 GTexel / s |
| Thermal Design Power (TDP) | 33 Watt | 15 Watt |
| Compte de transistor | 585 million | |
Sorties et ports de vidéo |
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| Connecteurs d’écran | No outputs | No outputs |
Compatibilité, dimensions et exigences |
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| Soutien de bus | PCI Express 2.0, PCI Express 3.0 | |
| Interface | PCIe 3.0 x8 | PCIe 2.0 x16 |
| Taille du laptop | medium sized | |
Soutien API |
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| DirectX | 12.0 (11_0) | 12.0 (11_0) |
| OpenGL | 4.5 | 4.6 |
Mémoire |
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| RAM maximale | 4 GB | 1 GB |
| Bande passante de la mémoire | 16.02 GB / s | 14.4 GB / s |
| Largeur du bus mémoire | 64 Bit | 64 Bit |
| Vitesse de mémoire | 2002 MHz | 1800 MHz |
| Genre de mémoire | DDR3 | DDR3 |
| Mémoire partagé | 0 | |
Technologies |
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| CUDA | ||
| GameWorks | ||
| GeForce Experience | ||
| GPU Boost | ||
| Optimus | ||
Navigation
Choisir un GPU
Comparer les cartes vidéo
Comparer NVIDIA GeForce 840M avec des autres
NVIDIAGeForce 840M vs
AMDRadeon HD 6370M
NVIDIAGeForce 840M vs
AMDRadeon HD 6550D
NVIDIAGeForce 840M vs
AMDRadeon R7 240
NVIDIAGeForce 840M vs
IntelUHD Graphics 630
NVIDIAGeForce 840M vs
IntelUHD Graphics 617
NVIDIAGeForce 840M vs
AMDRadeon 680M
