NVIDIA GeForce GT 640M LE vs NVIDIA GeForce GT 640M

Comparative analysis of NVIDIA GeForce GT 640M LE and NVIDIA GeForce GT 640M 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, 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).

 

Differences

Reasons to consider the NVIDIA GeForce GT 640M LE

  • Videocard is newer: launch date 1 month(s) later
  • Around 60% lower typical power consumption: 20 Watt vs 32 Watt
  • Around 74% higher memory clock speed: 3140 MHz vs 1800 MHz
  • Around 7% better performance in GFXBench 4.0 - Car Chase Offscreen (Frames): 1583 vs 1476
  • Around 17% better performance in GFXBench 4.0 - Manhattan (Frames): 2289 vs 1963
  • Around 21% better performance in GFXBench 4.0 - T-Rex (Frames): 3127 vs 2580
  • Around 7% better performance in GFXBench 4.0 - Car Chase Offscreen (Fps): 1583 vs 1476
  • Around 17% better performance in GFXBench 4.0 - Manhattan (Fps): 2289 vs 1963
  • Around 21% better performance in GFXBench 4.0 - T-Rex (Fps): 3127 vs 2580
Specifications (specs)
Launch date 4 May 2012 vs 22 March 2012
Thermal Design Power (TDP) 20 Watt vs 32 Watt
Memory clock speed 3140 MHz vs 1800 MHz
Benchmarks
GFXBench 4.0 - Car Chase Offscreen (Frames) 1583 vs 1476
GFXBench 4.0 - Manhattan (Frames) 2289 vs 1963
GFXBench 4.0 - T-Rex (Frames) 3127 vs 2580
GFXBench 4.0 - Car Chase Offscreen (Fps) 1583 vs 1476
GFXBench 4.0 - Manhattan (Fps) 2289 vs 1963
GFXBench 4.0 - T-Rex (Fps) 3127 vs 2580

Reasons to consider the NVIDIA GeForce GT 640M

  • Around 25% better floating-point performance: 480.0 gflops vs 384.0 gflops
  • A newer manufacturing process allows for a more powerful, yet cooler running videocard: 28 nm vs 40 nm
  • 2x more maximum memory size: 2 GB vs 1 GB
  • Around 30% better performance in PassMark - G3D Mark: 923 vs 709
  • Around 14% better performance in PassMark - G2D Mark: 198 vs 173
  • Around 36% better performance in Geekbench - OpenCL: 3184 vs 2344
  • Around 21% better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 7.861 vs 6.495
  • Around 10% better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 275.972 vs 251.012
  • Around 12% better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 0.727 vs 0.649
  • Around 16% better performance in CompuBench 1.5 Desktop - Video Composition (Frames/s): 15.445 vs 13.333
  • Around 25% better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 17.381 vs 13.954
Specifications (specs)
Floating-point performance 480.0 gflops vs 384.0 gflops
Manufacturing process technology 28 nm vs 40 nm
Maximum memory size 2 GB vs 1 GB
Benchmarks
PassMark - G3D Mark 923 vs 709
PassMark - G2D Mark 198 vs 173
Geekbench - OpenCL 3184 vs 2344
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 7.861 vs 6.495
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 275.972 vs 251.012
CompuBench 1.5 Desktop - T-Rex (Frames/s) 0.727 vs 0.649
CompuBench 1.5 Desktop - Video Composition (Frames/s) 15.445 vs 13.333
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 17.381 vs 13.954

Compare benchmarks

GPU 1: NVIDIA GeForce GT 640M LE
GPU 2: NVIDIA GeForce GT 640M

PassMark - G3D Mark
GPU 1
GPU 2
709
923
PassMark - G2D Mark
GPU 1
GPU 2
173
198
Geekbench - OpenCL
GPU 1
GPU 2
2344
3184
CompuBench 1.5 Desktop - Face Detection (mPixels/s)
GPU 1
GPU 2
6.495
7.861
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)
GPU 1
GPU 2
251.012
275.972
CompuBench 1.5 Desktop - T-Rex (Frames/s)
GPU 1
GPU 2
0.649
0.727
CompuBench 1.5 Desktop - Video Composition (Frames/s)
GPU 1
GPU 2
13.333
15.445
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)
GPU 1
GPU 2
13.954
17.381
GFXBench 4.0 - Car Chase Offscreen (Frames)
GPU 1
GPU 2
1583
1476
GFXBench 4.0 - Manhattan (Frames)
GPU 1
GPU 2
2289
1963
GFXBench 4.0 - T-Rex (Frames)
GPU 1
GPU 2
3127
2580
GFXBench 4.0 - Car Chase Offscreen (Fps)
GPU 1
GPU 2
1583
1476
GFXBench 4.0 - Manhattan (Fps)
GPU 1
GPU 2
2289
1963
GFXBench 4.0 - T-Rex (Fps)
GPU 1
GPU 2
3127
2580
Name NVIDIA GeForce GT 640M LE NVIDIA GeForce GT 640M
PassMark - G3D Mark 709 923
PassMark - G2D Mark 173 198
Geekbench - OpenCL 2344 3184
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 6.495 7.861
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 251.012 275.972
CompuBench 1.5 Desktop - T-Rex (Frames/s) 0.649 0.727
CompuBench 1.5 Desktop - Video Composition (Frames/s) 13.333 15.445
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 13.954 17.381
GFXBench 4.0 - Car Chase Offscreen (Frames) 1583 1476
GFXBench 4.0 - Manhattan (Frames) 2289 1963
GFXBench 4.0 - T-Rex (Frames) 3127 2580
GFXBench 4.0 - Car Chase Offscreen (Fps) 1583 1476
GFXBench 4.0 - Manhattan (Fps) 2289 1963
GFXBench 4.0 - T-Rex (Fps) 3127 2580

Compare specifications (specs)

NVIDIA GeForce GT 640M LE NVIDIA GeForce GT 640M

Essentials

Architecture Fermi Kepler
Code name GF108 GK107
Launch date 4 May 2012 22 March 2012
Launch price (MSRP) $849.99
Place in performance rating 1345 1346
Price now $849.99
Type Laptop Laptop
Value for money (0-100) 1.17

Technical info

CUDA cores Up to 384 384
Floating-point performance 384.0 gflops 480.0 gflops
Manufacturing process technology 40 nm 28 nm
Pipelines 384 384
Thermal Design Power (TDP) 20 Watt 32 Watt
Transistor count 585 million 1,270 million
Boost clock speed 645 MHz

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 3.0 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 1 GB 2 GB
Memory bus width 128bit 128bit
Memory clock speed 3140 MHz 1800 MHz
Memory type DDR3\DDR5 DDR3\GDDR5
Shared memory 0 0

Technologies

3D Blu-Ray
3D Vision
3D Vision / 3DTV Play
CUDA
DirectCompute
DirectX 11 DirectX 11 DirectX 11
Optimus
Verde Drivers