NVIDIA GeForce GT 640M versus AMD Radeon HD 6620G
Comparaison des cartes vidéo NVIDIA GeForce GT 640M and AMD Radeon HD 6620G 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).
Différences
Raisons pour considerer le NVIDIA GeForce GT 640M
- La carte vidéo est plus nouvelle: date de sortie 9 mois plus tard
- Un nouveau processus de fabrication soutient une carte vidéo plus forte, mais moins chaude: 28 nm versus 32 nm
- 2.7x meilleur performance en PassMark - G3D Mark: 928 versus 341
- Environ 95% meilleur performance en PassMark - G2D Mark: 201 versus 103
- 3.3x meilleur performance en Geekbench - OpenCL: 3185 versus 962
- Environ 87% meilleur performance en GFXBench 4.0 - Car Chase Offscreen (Frames): 1476 versus 790
- Environ 12% meilleur performance en GFXBench 4.0 - Manhattan (Frames): 1963 versus 1755
- Environ 87% meilleur performance en GFXBench 4.0 - Car Chase Offscreen (Fps): 1476 versus 790
- Environ 12% meilleur performance en GFXBench 4.0 - Manhattan (Fps): 1963 versus 1755
| Caractéristiques | |
| Date de sortie | 22 March 2012 versus 15 June 2011 |
| Processus de fabrication | 28 nm versus 32 nm |
| Référence | |
| PassMark - G3D Mark | 928 versus 341 |
| PassMark - G2D Mark | 201 versus 103 |
| Geekbench - OpenCL | 3185 versus 962 |
| GFXBench 4.0 - Car Chase Offscreen (Frames) | 1476 versus 790 |
| GFXBench 4.0 - Manhattan (Frames) | 1963 versus 1755 |
| GFXBench 4.0 - Car Chase Offscreen (Fps) | 1476 versus 790 |
| GFXBench 4.0 - Manhattan (Fps) | 1963 versus 1755 |
Raisons pour considerer le AMD Radeon HD 6620G
- Environ 4% de pipelines plus haut: 400 versus 384
- Environ 28% meilleur performance en GFXBench 4.0 - T-Rex (Frames): 3310 versus 2580
- Environ 28% meilleur performance en GFXBench 4.0 - T-Rex (Fps): 3310 versus 2580
| Caractéristiques | |
| Pipelines | 400 versus 384 |
| Référence | |
| GFXBench 4.0 - T-Rex (Frames) | 3310 versus 2580 |
| GFXBench 4.0 - T-Rex (Fps) | 3310 versus 2580 |
Comparer les références
GPU 1: NVIDIA GeForce GT 640M
GPU 2: AMD Radeon HD 6620G
| PassMark - G3D Mark |
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| PassMark - G2D Mark |
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| Geekbench - OpenCL |
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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 640M | AMD Radeon HD 6620G |
|---|---|---|
| PassMark - G3D Mark | 928 | 341 |
| PassMark - G2D Mark | 201 | 103 |
| Geekbench - OpenCL | 3185 | 962 |
| CompuBench 1.5 Desktop - Face Detection (mPixels/s) | 7.861 | |
| CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) | 275.972 | |
| CompuBench 1.5 Desktop - T-Rex (Frames/s) | 0.727 | |
| CompuBench 1.5 Desktop - Video Composition (Frames/s) | 15.445 | |
| CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) | 17.381 | |
| GFXBench 4.0 - Car Chase Offscreen (Frames) | 1476 | 790 |
| GFXBench 4.0 - Manhattan (Frames) | 1963 | 1755 |
| GFXBench 4.0 - T-Rex (Frames) | 2580 | 3310 |
| GFXBench 4.0 - Car Chase Offscreen (Fps) | 1476 | 790 |
| GFXBench 4.0 - Manhattan (Fps) | 1963 | 1755 |
| GFXBench 4.0 - T-Rex (Fps) | 2580 | 3310 |
Comparer les caractéristiques
| NVIDIA GeForce GT 640M | AMD Radeon HD 6620G | |
|---|---|---|
Essentiel |
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| Architecture | Kepler | Terascale 2 |
| Nom de code | GK107 | Llano |
| Date de sortie | 22 March 2012 | 15 June 2011 |
| Position dans l’évaluation de la performance | 1346 | 1349 |
| Genre | Laptop | Laptop |
Infos techniques |
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| Vitesse augmenté | 645 MHz | |
| Noyaux CUDA | 384 | |
| Performance á point flottant | 480.0 gflops | |
| Processus de fabrication | 28 nm | 32 nm |
| Pipelines | 384 | 400 |
| Thermal Design Power (TDP) | 32 Watt | |
| Compte de transistor | 1,270 million | 1000 Million |
| Vitesse du noyau | 400 MHz | |
Sorties et ports de vidéo |
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| Connecteurs d’écran | No outputs | |
| HDCP | ||
| HDMI | ||
| Résolution VGA maximale | Up to 2048x1536 | |
Compatibilité, dimensions et exigences |
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| Soutien de bus | PCI Express 2.0, PCI Express 3.0 | |
| Interface | PCIe 3.0 x16 | |
| Taille du laptop | medium sized | medium sized |
Soutien API |
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| DirectX | 12 API | 11 |
| OpenCL | 1.1 | |
| OpenGL | 4.5 | |
Mémoire |
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| RAM maximale | 2 GB | |
| Largeur du bus mémoire | 128bit | |
| Vitesse de mémoire | 1800 MHz | |
| Genre de mémoire | DDR3\GDDR5 | |
| Mémoire partagé | 0 | 1 |
Technologies |
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| 3D Blu-Ray | ||
| 3D Vision | ||
| CUDA | ||
| DirectCompute | ||
| DirectX 11 | DirectX 11 | |
| Optimus | ||
Navigation
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