NVIDIA GeForce 940M versus NVIDIA GeForce GT 645M

Comparaison des cartes vidéo NVIDIA GeForce 940M 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), 3DMark Fire Strike - Graphics Score.

 

Différences

Raisons pour considerer le NVIDIA GeForce 940M

  • La carte vidéo est plus nouvelle: date de sortie 2 ans 5 mois plus tard
  • Environ 24% taux plus haut de remplissage de la texture: 28.22 GTexel / s versus 22.7 billion / sec
  • Environ 66% de meilleur performance á point flottant: 903.2 gflops versus 544.5 gflops
  • Environ 20% meilleur performance en PassMark - G3D Mark: 1127 versus 936
  • 2.2x meilleur performance en Geekbench - OpenCL: 5982 versus 2683
  • 3.1x meilleur performance en CompuBench 1.5 Desktop - Face Detection (mPixels/s): 25.98 versus 8.493
  • Environ 51% meilleur performance en CompuBench 1.5 Desktop - T-Rex (Frames/s): 1.307 versus 0.863
  • Environ 27% meilleur performance en CompuBench 1.5 Desktop - Video Composition (Frames/s): 21.837 versus 17.242
  • 5.3x meilleur performance en CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 101.399 versus 19.116
  • Environ 11% meilleur performance en GFXBench 4.0 - Car Chase Offscreen (Frames): 2132 versus 1913
  • Environ 11% meilleur performance en GFXBench 4.0 - Car Chase Offscreen (Fps): 2132 versus 1913
Caractéristiques
Date de sortie 13 March 2015 versus 1 October 2012
Taux de remplissage de la texture 28.22 GTexel / s versus 22.7 billion / sec
Performance á point flottant 903.2 gflops versus 544.5 gflops
Référence
PassMark - G3D Mark 1127 versus 936
Geekbench - OpenCL 5982 versus 2683
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 25.98 versus 8.493
CompuBench 1.5 Desktop - T-Rex (Frames/s) 1.307 versus 0.863
CompuBench 1.5 Desktop - Video Composition (Frames/s) 21.837 versus 17.242
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 101.399 versus 19.116
GFXBench 4.0 - Car Chase Offscreen (Frames) 2132 versus 1913
GFXBench 4.0 - T-Rex (Frames) 3357 versus 3341
GFXBench 4.0 - Car Chase Offscreen (Fps) 2132 versus 1913
GFXBench 4.0 - T-Rex (Fps) 3357 versus 3341

Raisons pour considerer le NVIDIA GeForce GT 645M

  • Environ 3% consummation d’énergie moyen plus bas: 32 Watt versus 33 Watt
  • Environ 6% meilleur performance en PassMark - G2D Mark: 164 versus 154
  • Environ 69% meilleur performance en CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 285.42 versus 168.449
  • Environ 20% meilleur performance en GFXBench 4.0 - Manhattan (Frames): 3670 versus 3065
  • Environ 20% meilleur performance en GFXBench 4.0 - Manhattan (Fps): 3670 versus 3065
Caractéristiques
Thermal Design Power (TDP) 32 Watt versus 33 Watt
Référence
PassMark - G2D Mark 164 versus 154
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 285.42 versus 168.449
GFXBench 4.0 - Manhattan (Frames) 3670 versus 3065
GFXBench 4.0 - Manhattan (Fps) 3670 versus 3065

Comparer les références

GPU 1: NVIDIA GeForce 940M
GPU 2: NVIDIA GeForce GT 645M

PassMark - G3D Mark
GPU 1
GPU 2
1127
936
PassMark - G2D Mark
GPU 1
GPU 2
154
164
Geekbench - OpenCL
GPU 1
GPU 2
5982
2683
CompuBench 1.5 Desktop - Face Detection (mPixels/s)
GPU 1
GPU 2
25.98
8.493
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)
GPU 1
GPU 2
168.449
285.42
CompuBench 1.5 Desktop - T-Rex (Frames/s)
GPU 1
GPU 2
1.307
0.863
CompuBench 1.5 Desktop - Video Composition (Frames/s)
GPU 1
GPU 2
21.837
17.242
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)
GPU 1
GPU 2
101.399
19.116
GFXBench 4.0 - Car Chase Offscreen (Frames)
GPU 1
GPU 2
2132
1913
GFXBench 4.0 - Manhattan (Frames)
GPU 1
GPU 2
3065
3670
GFXBench 4.0 - T-Rex (Frames)
GPU 1
GPU 2
3357
3341
GFXBench 4.0 - Car Chase Offscreen (Fps)
GPU 1
GPU 2
2132
1913
GFXBench 4.0 - Manhattan (Fps)
GPU 1
GPU 2
3065
3670
GFXBench 4.0 - T-Rex (Fps)
GPU 1
GPU 2
3357
3341
Nom NVIDIA GeForce 940M NVIDIA GeForce GT 645M
PassMark - G3D Mark 1127 936
PassMark - G2D Mark 154 164
Geekbench - OpenCL 5982 2683
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 25.98 8.493
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 168.449 285.42
CompuBench 1.5 Desktop - T-Rex (Frames/s) 1.307 0.863
CompuBench 1.5 Desktop - Video Composition (Frames/s) 21.837 17.242
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 101.399 19.116
GFXBench 4.0 - Car Chase Offscreen (Frames) 2132 1913
GFXBench 4.0 - Manhattan (Frames) 3065 3670
GFXBench 4.0 - T-Rex (Frames) 3357 3341
GFXBench 4.0 - Car Chase Offscreen (Fps) 2132 1913
GFXBench 4.0 - Manhattan (Fps) 3065 3670
GFXBench 4.0 - T-Rex (Fps) 3357 3341
3DMark Fire Strike - Graphics Score 506

Comparer les caractéristiques

NVIDIA GeForce 940M NVIDIA GeForce GT 645M

Essentiel

Architecture Maxwell Kepler
Nom de code GM108 GK107
Date de sortie 13 March 2015 1 October 2012
Position dans l’évaluation de la performance 1184 1187
Genre Laptop Laptop

Infos techniques

Vitesse augmenté 1176 MHz
Vitesse du noyau 1072 MHz
Performance á point flottant 903.2 gflops 544.5 gflops
Processus de fabrication 28 nm 28 nm
Pipelines 384 384
Taux de remplissage de la texture 28.22 GTexel / s 22.7 billion / sec
Thermal Design Power (TDP) 33 Watt 32 Watt
Compte de transistor 1,870 million 1,270 million
Noyaux CUDA 384

Sorties et ports de vidéo

Connecteurs d’écran No outputs No outputs
HDCP
HDMI
Résolution VGA maximale Up to 2048x1536

Compatibilité, dimensions et exigences

Soutien de bus PCI Express 3.0 PCI Express 2.0, PCI Express 3.0
Interface PCIe 3.0 x8 PCIe 3.0 x16
Taille du laptop medium sized medium sized

Soutien API

DirectX 12.0 (11_0) 12 API
OpenGL 4.5 4.5
OpenCL 1.1

Mémoire

RAM maximale 2 GB 2 GB
Bande passante de la mémoire 14.4 GB / s
Largeur du bus mémoire 64 Bit 128bit
Vitesse de mémoire 1800 MHz 1800 MHz
Genre de mémoire DDR3 DDR3\GDDR5
Mémoire partagé 0 0

Technologies

CUDA
GameWorks
GeForce Experience
GPU Boost
Optimus
3D Blu-Ray
3D Vision
DirectCompute
DirectX 11 DirectX 11