NVIDIA GeForce GT 745A versus NVIDIA GeForce GT 645M
Comparaison des cartes vidéo NVIDIA GeForce GT 745A and NVIDIA GeForce GT 645M 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 745A
- La carte vidéo est plus nouvelle: date de sortie 10 mois plus tard
- Environ 18% taux plus haut de remplissage de la texture: 26.78 GTexel / s versus 22.7 billion / sec
- Environ 18% de meilleur performance á point flottant: 642.8 gflops versus 544.5 gflops
- Environ 33% meilleur performance en PassMark - G3D Mark: 1238 versus 932
- Environ 89% meilleur performance en PassMark - G2D Mark: 305 versus 161
- 7.4x meilleur performance en Geekbench - OpenCL: 19809 versus 2659
- Environ 47% meilleur performance en CompuBench 1.5 Desktop - Face Detection (mPixels/s): 12.446 versus 8.493
- Environ 2% meilleur performance en CompuBench 1.5 Desktop - T-Rex (Frames/s): 0.883 versus 0.863
- Environ 35% meilleur performance en CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 25.74 versus 19.116
Caractéristiques | |
Date de sortie | 26 August 2013 versus 1 October 2012 |
Taux de remplissage de la texture | 26.78 GTexel / s versus 22.7 billion / sec |
Performance á point flottant | 642.8 gflops versus 544.5 gflops |
Référence | |
PassMark - G3D Mark | 1238 versus 932 |
PassMark - G2D Mark | 305 versus 161 |
Geekbench - OpenCL | 19809 versus 2659 |
CompuBench 1.5 Desktop - Face Detection (mPixels/s) | 12.446 versus 8.493 |
CompuBench 1.5 Desktop - T-Rex (Frames/s) | 0.883 versus 0.863 |
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) | 25.74 versus 19.116 |
Raisons pour considerer le NVIDIA GeForce GT 645M
- Environ 3% consummation d’énergie moyen plus bas: 32 Watt versus 33 Watt
- Environ 3% meilleur performance en CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 285.42 versus 278.161
- Environ 17% meilleur performance en CompuBench 1.5 Desktop - Video Composition (Frames/s): 17.242 versus 14.778
Caractéristiques | |
Thermal Design Power (TDP) | 32 Watt versus 33 Watt |
Référence | |
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) | 285.42 versus 278.161 |
CompuBench 1.5 Desktop - Video Composition (Frames/s) | 17.242 versus 14.778 |
Comparer les références
GPU 1: NVIDIA GeForce GT 745A
GPU 2: NVIDIA GeForce GT 645M
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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Nom | NVIDIA GeForce GT 745A | NVIDIA GeForce GT 645M |
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PassMark - G3D Mark | 1238 | 932 |
PassMark - G2D Mark | 305 | 161 |
Geekbench - OpenCL | 19809 | 2659 |
CompuBench 1.5 Desktop - Face Detection (mPixels/s) | 12.446 | 8.493 |
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) | 278.161 | 285.42 |
CompuBench 1.5 Desktop - T-Rex (Frames/s) | 0.883 | 0.863 |
CompuBench 1.5 Desktop - Video Composition (Frames/s) | 14.778 | 17.242 |
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) | 25.74 | 19.116 |
GFXBench 4.0 - Car Chase Offscreen (Frames) | 1913 | |
GFXBench 4.0 - Manhattan (Frames) | 3670 | |
GFXBench 4.0 - T-Rex (Frames) | 3341 | |
GFXBench 4.0 - Car Chase Offscreen (Fps) | 1913 | |
GFXBench 4.0 - Manhattan (Fps) | 3670 | |
GFXBench 4.0 - T-Rex (Fps) | 3341 |
Comparer les caractéristiques
NVIDIA GeForce GT 745A | NVIDIA GeForce GT 645M | |
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Essentiel |
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Architecture | Kepler | Kepler |
Nom de code | GK107 | GK107 |
Date de sortie | 26 August 2013 | 1 October 2012 |
Position dans l’évaluation de la performance | 1211 | 1214 |
Genre | Desktop | Laptop |
Infos techniques |
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Vitesse du noyau | 837 MHz | |
Performance á point flottant | 642.8 gflops | 544.5 gflops |
Processus de fabrication | 28 nm | 28 nm |
Pipelines | 384 | 384 |
Taux de remplissage de la texture | 26.78 GTexel / s | 22.7 billion / sec |
Thermal Design Power (TDP) | 33 Watt | 32 Watt |
Compte de transistor | 1,270 million | 1,270 million |
Noyaux CUDA | 384 | |
Sorties et ports de vidéo |
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Connecteurs d’écran | No outputs | No outputs |
HDCP | ||
HDMI | ||
Résolution VGA maximale | Up to 2048x1536 | |
Compatibilité, dimensions et exigences |
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Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
Soutien de bus | PCI Express 2.0, 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 | 2 GB | 2 GB |
Bande passante de la mémoire | 28.8 GB / s | |
Largeur du bus mémoire | 128 Bit | 128bit |
Vitesse de mémoire | 1800 MHz | 1800 MHz |
Genre de mémoire | DDR3 | DDR3\GDDR5 |
Mémoire partagé | 0 | |
Technologies |
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3D Blu-Ray | ||
3D Vision | ||
CUDA | ||
DirectCompute | ||
DirectX 11 | DirectX 11 | |
Optimus |