NVIDIA GeForce GT 625M vs NVIDIA GeForce GT 645M

Comparative analysis of NVIDIA GeForce GT 625M and NVIDIA GeForce GT 645M videocards for all known characteristics in the following categories: Essentials, Technical info, Video outputs and ports, Compatibility, dimensions and requirements, API support, Memory, Technologies. Benchmark videocards performance analysis: PassMark - G3D Mark, PassMark - G2D Mark, Geekbench - OpenCL, GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - T-Rex (Fps), 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).

 

Differences

Reasons to consider the NVIDIA GeForce GT 625M

  • 2.1x lower typical power consumption: 15 Watt vs 32 Watt
Thermal Design Power (TDP) 15 Watt vs 32 Watt

Reasons to consider the NVIDIA GeForce GT 645M

  • 4x more pipelines: 384 vs 96
  • 2.3x better floating-point performance: 544.5 gflops vs 240.0 gflops
  • Around 95% better performance in PassMark - G3D Mark: 935 vs 479
  • Around 13% better performance in PassMark - G2D Mark: 160 vs 141
  • Around 20% better performance in Geekbench - OpenCL: 2673 vs 2229
  • Around 91% better performance in GFXBench 4.0 - Car Chase Offscreen (Frames): 1913 vs 999
  • Around 91% better performance in GFXBench 4.0 - Car Chase Offscreen (Fps): 1913 vs 999
  • Around 57% better performance in GFXBench 4.0 - Manhattan (Frames): 3670 vs 2333
  • Around 57% better performance in GFXBench 4.0 - Manhattan (Fps): 3670 vs 2333
  • Around 3% better performance in GFXBench 4.0 - T-Rex (Frames): 3341 vs 3257
  • Around 3% better performance in GFXBench 4.0 - T-Rex (Fps): 3341 vs 3257
Specifications (specs)
Pipelines 384 vs 96
Floating-point performance 544.5 gflops vs 240.0 gflops
Benchmarks
PassMark - G3D Mark 935 vs 479
PassMark - G2D Mark 160 vs 141
Geekbench - OpenCL 2673 vs 2229
GFXBench 4.0 - Car Chase Offscreen (Frames) 1913 vs 999
GFXBench 4.0 - Car Chase Offscreen (Fps) 1913 vs 999
GFXBench 4.0 - Manhattan (Frames) 3670 vs 2333
GFXBench 4.0 - Manhattan (Fps) 3670 vs 2333
GFXBench 4.0 - T-Rex (Frames) 3341 vs 3257
GFXBench 4.0 - T-Rex (Fps) 3341 vs 3257

Compare benchmarks

GPU 1: NVIDIA GeForce GT 625M
GPU 2: NVIDIA GeForce GT 645M

PassMark - G3D Mark
GPU 1
GPU 2
479
935
PassMark - G2D Mark
GPU 1
GPU 2
141
160
Geekbench - OpenCL
GPU 1
GPU 2
2229
2673
GFXBench 4.0 - Car Chase Offscreen (Frames)
GPU 1
GPU 2
999
1913
GFXBench 4.0 - Car Chase Offscreen (Fps)
GPU 1
GPU 2
999
1913
GFXBench 4.0 - Manhattan (Frames)
GPU 1
GPU 2
2333
3670
GFXBench 4.0 - Manhattan (Fps)
GPU 1
GPU 2
2333
3670
GFXBench 4.0 - T-Rex (Frames)
GPU 1
GPU 2
3257
3341
GFXBench 4.0 - T-Rex (Fps)
GPU 1
GPU 2
3257
3341
Name NVIDIA GeForce GT 625M NVIDIA GeForce GT 645M
PassMark - G3D Mark 479 935
PassMark - G2D Mark 141 160
Geekbench - OpenCL 2229 2673
GFXBench 4.0 - Car Chase Offscreen (Frames) 999 1913
GFXBench 4.0 - Car Chase Offscreen (Fps) 999 1913
GFXBench 4.0 - Manhattan (Frames) 2333 3670
GFXBench 4.0 - Manhattan (Fps) 2333 3670
GFXBench 4.0 - T-Rex (Frames) 3257 3341
GFXBench 4.0 - T-Rex (Fps) 3257 3341
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 8.493
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 285.42
CompuBench 1.5 Desktop - T-Rex (Frames/s) 0.863
CompuBench 1.5 Desktop - Video Composition (Frames/s) 17.242
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 19.116

Compare specifications (specs)

NVIDIA GeForce GT 625M NVIDIA GeForce GT 645M

Essentials

Architecture Fermi 2.0 Kepler
Code name GF117 GK107
Launch date 1 October 2012 1 October 2012
Place in performance rating 1212 1213
Type Laptop Laptop

Technical info

CUDA cores 96 384
Floating-point performance 240.0 gflops 544.5 gflops
Manufacturing process technology 28 nm 28 nm
Pipelines 96 384
Thermal Design Power (TDP) 15 Watt 32 Watt
Transistor count 585 million 1,270 million
Texture fill rate 22.7 billion / sec

Video outputs and ports

Display Connectors No outputs No outputs
HDCP
HDMI
Maximum VGA resolution Up to 2048x1536 Up to 2048x1536

Compatibility, dimensions and requirements

Bus support PCI Express 2.0 PCI Express 2.0, PCI Express 3.0
Interface PCIe 2.0 x16 PCIe 3.0 x16
Laptop size medium sized medium sized

API support

DirectX 12 API 12 API
OpenCL 1.1 1.1
OpenGL 4.5 4.5

Memory

Maximum RAM amount 2 GB 2 GB
Memory bus width 64 Bit 128bit
Memory clock speed 1800 MHz 1800 MHz
Memory type DDR3 DDR3\GDDR5
Shared memory 0 0

Technologies

3D Blu-Ray
CUDA
DirectCompute
DirectX 11 DirectX 11 DirectX 11
Optimus
3D Vision