NVIDIA GeForce GT 820M versus NVIDIA GeForce GT 640 OEM
Comparaison des cartes vidéo NVIDIA GeForce GT 820M and NVIDIA GeForce GT 640 OEM pour tous les caractéristiques connus dans les catégories suivants: Essentiel, Infos techniques, Sorties et ports de vidéo, Compatibilité, dimensions et exigences, Soutien API, Mémoire. 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).
Différences
Raisons pour considerer le NVIDIA GeForce GT 820M
- La carte vidéo est plus nouvelle: date de sortie 1 ans 7 mois plus tard
- 3.3x consummation d’énergie moyen plus bas: 15 Watt versus 50 Watt
- Environ 1% plus haut de vitesse de mémoire: 1800 MHz versus 1782 MHz
- Environ 16% meilleur performance en CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 17.753 versus 15.32
- Environ 14% meilleur performance en GFXBench 4.0 - Manhattan (Frames): 2479 versus 2167
- Environ 14% meilleur performance en GFXBench 4.0 - Manhattan (Fps): 2479 versus 2167
| Caractéristiques | |
| Date de sortie | 27 November 2013 versus 24 April 2012 |
| Thermal Design Power (TDP) | 15 Watt versus 50 Watt |
| Vitesse de mémoire | 1800 MHz versus 1782 MHz |
| Référence | |
| CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) | 17.753 versus 15.32 |
| GFXBench 4.0 - Manhattan (Frames) | 2479 versus 2167 |
| GFXBench 4.0 - Manhattan (Fps) | 2479 versus 2167 |
Raisons pour considerer le NVIDIA GeForce GT 640 OEM
- Environ 3% plus haut vitesse du noyau: 797 MHz versus 775 MHz
- times}x plus de taux de remplissage de la texture: 25.5 GTexel / s versus 12.4 GTexel / s
- 4x plus de pipelines: 384 versus 96
- 2.1x de meilleur performance á point flottant: 612.1 gflops versus 297.6 gflops
- 2x plus de taille maximale de mémoire : 2 GB versus 1 GB
- 3.7x meilleur performance en CompuBench 1.5 Desktop - Face Detection (mPixels/s): 9.932 versus 2.692
- Environ 58% meilleur performance en CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 254.345 versus 161.29
- 2.1x meilleur performance en CompuBench 1.5 Desktop - T-Rex (Frames/s): 1.14 versus 0.55
- Environ 15% meilleur performance en CompuBench 1.5 Desktop - Video Composition (Frames/s): 13.613 versus 11.858
- Environ 19% meilleur performance en GFXBench 4.0 - Car Chase Offscreen (Frames): 1502 versus 1263
- Environ 19% meilleur performance en GFXBench 4.0 - Car Chase Offscreen (Fps): 1502 versus 1263
| Caractéristiques | |
| Vitesse du noyau | 797 MHz versus 775 MHz |
| Taux de remplissage de la texture | 25.5 GTexel / s versus 12.4 GTexel / s |
| Pipelines | 384 versus 96 |
| Performance á point flottant | 612.1 gflops versus 297.6 gflops |
| Taille de mémore maximale | 2 GB versus 1 GB |
| Référence | |
| CompuBench 1.5 Desktop - Face Detection (mPixels/s) | 9.932 versus 2.692 |
| CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) | 254.345 versus 161.29 |
| CompuBench 1.5 Desktop - T-Rex (Frames/s) | 1.14 versus 0.55 |
| CompuBench 1.5 Desktop - Video Composition (Frames/s) | 13.613 versus 11.858 |
| GFXBench 4.0 - Car Chase Offscreen (Frames) | 1502 versus 1263 |
| GFXBench 4.0 - T-Rex (Frames) | 3334 versus 3327 |
| GFXBench 4.0 - Car Chase Offscreen (Fps) | 1502 versus 1263 |
| GFXBench 4.0 - T-Rex (Fps) | 3334 versus 3327 |
Comparer les références
GPU 1: NVIDIA GeForce GT 820M
GPU 2: NVIDIA GeForce GT 640 OEM
| 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 GT 820M | NVIDIA GeForce GT 640 OEM |
|---|---|---|
| PassMark - G3D Mark | 551 | |
| PassMark - G2D Mark | 144 | |
| Geekbench - OpenCL | 2530 | |
| CompuBench 1.5 Desktop - Face Detection (mPixels/s) | 2.692 | 9.932 |
| CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) | 161.29 | 254.345 |
| CompuBench 1.5 Desktop - T-Rex (Frames/s) | 0.55 | 1.14 |
| CompuBench 1.5 Desktop - Video Composition (Frames/s) | 11.858 | 13.613 |
| CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) | 17.753 | 15.32 |
| GFXBench 4.0 - Car Chase Offscreen (Frames) | 1263 | 1502 |
| GFXBench 4.0 - Manhattan (Frames) | 2479 | 2167 |
| GFXBench 4.0 - T-Rex (Frames) | 3327 | 3334 |
| GFXBench 4.0 - Car Chase Offscreen (Fps) | 1263 | 1502 |
| GFXBench 4.0 - Manhattan (Fps) | 2479 | 2167 |
| GFXBench 4.0 - T-Rex (Fps) | 3327 | 3334 |
Comparer les caractéristiques
| NVIDIA GeForce GT 820M | NVIDIA GeForce GT 640 OEM | |
|---|---|---|
Essentiel |
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| Architecture | Fermi 2.0 | Kepler |
| Nom de code | GF117 | GK107 |
| Date de sortie | 27 November 2013 | 24 April 2012 |
| Position dans l’évaluation de la performance | 1366 | 1368 |
| Genre | Desktop | Desktop |
Infos techniques |
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| Vitesse du noyau | 775 MHz | 797 MHz |
| Performance á point flottant | 297.6 gflops | 612.1 gflops |
| Processus de fabrication | 28 nm | 28 nm |
| Pipelines | 96 | 384 |
| Taux de remplissage de la texture | 12.4 GTexel / s | 25.5 GTexel / s |
| Thermal Design Power (TDP) | 15 Watt | 50 Watt |
| Compte de transistor | 585 million | 1,270 million |
Sorties et ports de vidéo |
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| Connecteurs d’écran | No outputs | 1x DVI, 1x HDMI, 1x DisplayPort |
Compatibilité, dimensions et exigences |
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| Interface | PCIe 2.0 x16 | PCIe 3.0 x16 |
| Longeur | 145 mm | |
| Connecteurs d’énergie supplementaires | None | |
Soutien API |
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| DirectX | 12.0 (11_0) | 12.0 (11_0) |
| OpenGL | 4.6 | 4.6 |
Mémoire |
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| RAM maximale | 1 GB | 2 GB |
| Bande passante de la mémoire | 14.4 GB / s | 28.51 GB / s |
| Largeur du bus mémoire | 64 Bit | 128 Bit |
| Vitesse de mémoire | 1800 MHz | 1782 MHz |
| Genre de mémoire | DDR3 | DDR3 |
Navigation
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Comparer NVIDIA GeForce GT 820M avec des autres
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NVIDIAGeForce 9800M GTX
NVIDIAGeForce GT 820M vs
NVIDIAQuadro FX 3800
NVIDIAGeForce GT 820M vs
ATIRadeon HD 5570
NVIDIAGeForce GT 820M vs
NVIDIAGeForce GT 640 OEM
NVIDIAGeForce GT 820M vs
NVIDIAQuadro K600
NVIDIAGeForce GT 820M vs
AMDRadeon R5 M255
