NVIDIA GeForce GT 640 Rev. 2 versus NVIDIA GeForce GT 745M
Comparaison des cartes vidéo NVIDIA GeForce GT 640 Rev. 2 and NVIDIA GeForce GT 745M 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: 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), PassMark - G3D Mark, PassMark - G2D Mark, Geekbench - OpenCL, 3DMark Fire Strike - Graphics Score.
Différences
Raisons pour considerer le NVIDIA GeForce GT 640 Rev. 2
- La carte vidéo est plus nouvelle: date de sortie 1 mois plus tard
- Environ 25% plus haut vitesse du noyau: 1046 MHz versus 837 MHz
- Environ 25% de meilleur performance á point flottant: 803.3 gflops versus 642.8 gflops
- 2.8x plus de vitesse de mémoire: 5008 MHz versus 1800 MHz
- Environ 7% meilleur performance en CompuBench 1.5 Desktop - Video Composition (Frames/s): 8.717 versus 8.184
- Environ 2% meilleur performance en GFXBench 4.0 - Car Chase Offscreen (Frames): 2309 versus 2255
- Environ 7% meilleur performance en GFXBench 4.0 - Manhattan (Frames): 3354 versus 3133
- Environ 2% meilleur performance en GFXBench 4.0 - Car Chase Offscreen (Fps): 2309 versus 2255
- Environ 7% meilleur performance en GFXBench 4.0 - Manhattan (Fps): 3354 versus 3133
| Caractéristiques | |
| Date de sortie | 29 May 2013 versus 1 April 2013 |
| Vitesse du noyau | 1046 MHz versus 837 MHz |
| Performance á point flottant | 803.3 gflops versus 642.8 gflops |
| Vitesse de mémoire | 5008 MHz versus 1800 MHz |
| Référence | |
| CompuBench 1.5 Desktop - Video Composition (Frames/s) | 8.717 versus 8.184 |
| GFXBench 4.0 - Car Chase Offscreen (Frames) | 2309 versus 2255 |
| GFXBench 4.0 - Manhattan (Frames) | 3354 versus 3133 |
| GFXBench 4.0 - Car Chase Offscreen (Fps) | 2309 versus 2255 |
| GFXBench 4.0 - Manhattan (Fps) | 3354 versus 3133 |
Raisons pour considerer le NVIDIA GeForce GT 745M
- Environ 60% taux plus haut de remplissage de la texture: 26.78 GTexel / s versus 16.74 GTexel / s
- Environ 9% consummation d’énergie moyen plus bas: 45 Watt versus 49 Watt
- 2x plus de taille maximale de mémoire : 2 GB versus 1 GB
- Environ 17% meilleur performance en CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 202.905 versus 173.537
- 20.6x meilleur performance en CompuBench 1.5 Desktop - T-Rex (Frames/s): 0.66 versus 0.032
- Environ 85% meilleur performance en CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 19.323 versus 10.454
- Environ 4% meilleur performance en GFXBench 4.0 - T-Rex (Frames): 3352 versus 3220
- Environ 4% meilleur performance en GFXBench 4.0 - T-Rex (Fps): 3352 versus 3220
| Caractéristiques | |
| Taux de remplissage de la texture | 26.78 GTexel / s versus 16.74 GTexel / s |
| Thermal Design Power (TDP) | 45 Watt versus 49 Watt |
| Taille de mémore maximale | 2 GB versus 1 GB |
| Référence | |
| CompuBench 1.5 Desktop - Face Detection (mPixels/s) | 10.489 versus 10.475 |
| CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) | 202.905 versus 173.537 |
| CompuBench 1.5 Desktop - T-Rex (Frames/s) | 0.66 versus 0.032 |
| CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) | 19.323 versus 10.454 |
| GFXBench 4.0 - T-Rex (Frames) | 3352 versus 3220 |
| GFXBench 4.0 - T-Rex (Fps) | 3352 versus 3220 |
Comparer les références
GPU 1: NVIDIA GeForce GT 640 Rev. 2
GPU 2: NVIDIA GeForce GT 745M
| 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 640 Rev. 2 | NVIDIA GeForce GT 745M |
|---|---|---|
| CompuBench 1.5 Desktop - Face Detection (mPixels/s) | 10.475 | 10.489 |
| CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) | 173.537 | 202.905 |
| CompuBench 1.5 Desktop - T-Rex (Frames/s) | 0.032 | 0.66 |
| CompuBench 1.5 Desktop - Video Composition (Frames/s) | 8.717 | 8.184 |
| CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) | 10.454 | 19.323 |
| GFXBench 4.0 - Car Chase Offscreen (Frames) | 2309 | 2255 |
| GFXBench 4.0 - Manhattan (Frames) | 3354 | 3133 |
| GFXBench 4.0 - T-Rex (Frames) | 3220 | 3352 |
| GFXBench 4.0 - Car Chase Offscreen (Fps) | 2309 | 2255 |
| GFXBench 4.0 - Manhattan (Fps) | 3354 | 3133 |
| GFXBench 4.0 - T-Rex (Fps) | 3220 | 3352 |
| PassMark - G3D Mark | 1095 | |
| PassMark - G2D Mark | 180 | |
| Geekbench - OpenCL | 3468 | |
| 3DMark Fire Strike - Graphics Score | 0 |
Comparer les caractéristiques
| NVIDIA GeForce GT 640 Rev. 2 | NVIDIA GeForce GT 745M | |
|---|---|---|
Essentiel |
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| Architecture | Kepler 2.0 | Kepler |
| Nom de code | GK208 | GK107 |
| Date de sortie | 29 May 2013 | 1 April 2013 |
| Prix de sortie (MSRP) | $89 | |
| Position dans l’évaluation de la performance | 1272 | 1274 |
| Genre | Desktop | Laptop |
Infos techniques |
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| Vitesse du noyau | 1046 MHz | 837 MHz |
| Performance á point flottant | 803.3 gflops | 642.8 gflops |
| Processus de fabrication | 28 nm | 28 nm |
| Pipelines | 384 | 384 |
| Taux de remplissage de la texture | 16.74 GTexel / s | 26.78 GTexel / s |
| Thermal Design Power (TDP) | 49 Watt | 45 Watt |
| Compte de transistor | 1,270 million | |
Sorties et ports de vidéo |
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| Connecteurs d’écran | 1x DVI, 1x HDMI, 1x VGA | No outputs |
| Audio HD reseau 7.1 sur HDMI | ||
| Soutien de DisplayPort Multimode (DP++) | Up to 3840x2160 | |
| Soutien du signal sDP 1.2 | Up to 3840x2160 | |
| Protection du contenu HDCP | ||
| HDMI | ||
| Support du signale LVDS | Up to 1920x1200 | |
| Bitstreaming d’audio TrueHD et DTS-HD | ||
| Soutien de l’écran analog VGA | Up to 2048x1536 | |
Compatibilité, dimensions et exigences |
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| Interface | PCIe 2.0 x8 | PCIe 3.0 x16 |
| Longeur | 145 mm | |
| Connecteurs d’énergie supplementaires | None | |
| Soutien de bus | PCI Express 3.0 | |
| Taille du laptop | medium sized | |
Soutien API |
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| DirectX | 12.0 (11_0) | 12 API |
| OpenGL | 4.6 | 4.5 |
| OpenCL | 1.1 | |
Mémoire |
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| RAM maximale | 1 GB | 2 GB |
| Bande passante de la mémoire | 40.06 GB / s | 28.8 GB / s |
| Largeur du bus mémoire | 64 Bit | 128 Bit |
| Vitesse de mémoire | 5008 MHz | 1800 MHz |
| Genre de mémoire | GDDR5 | DDR3, GDDR5 |
| Mémoire partagé | 0 | |
| Configuration standard de la mémoire | DDR3 / GDDR5 | |
Technologies |
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| 3D Vision | ||
| 3D Vision / 3DTV Play | ||
| Blu-Ray 3D Support | ||
| CUDA | ||
| Direct Compute | ||
| FXAA | ||
| H.264, VC1, MPEG2 1080p video decoder | ||
| Optimus | ||
Navigation
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Comparer les cartes vidéo
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NVIDIAGeForce GTX 660M
NVIDIAGeForce GT 640 Rev. 2 vs
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NVIDIAGeForce GT 640 Rev. 2 vs
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NVIDIAGeForce GT 640 Rev. 2 vs
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