NVIDIA GeForce GT 645M vs ATI Mobility Radeon HD 4250 IGP

Comparative analysis of NVIDIA GeForce GT 645M and ATI Mobility Radeon HD 4250 IGP 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 645M

  • Videocard is newer: launch date 2 year(s) 5 month(s) later
  • A newer manufacturing process allows for a more powerful, yet cooler running videocard: 28 nm vs 55 nm
  • 9.5x better performance in PassMark - G3D Mark: 935 vs 98
  • 4.5x better performance in GFXBench 4.0 - Manhattan (Frames): 3670 vs 813
  • 4.8x better performance in GFXBench 4.0 - T-Rex (Frames): 3341 vs 699
  • 4.5x better performance in GFXBench 4.0 - Manhattan (Fps): 3670 vs 813
  • 4.8x better performance in GFXBench 4.0 - T-Rex (Fps): 3341 vs 699
Specifications (specs)
Launch date 1 October 2012 vs 1 May 2010
Manufacturing process technology 28 nm vs 55 nm
Benchmarks
PassMark - G3D Mark 935 vs 98
GFXBench 4.0 - Manhattan (Frames) 3670 vs 813
GFXBench 4.0 - T-Rex (Frames) 3341 vs 699
GFXBench 4.0 - Manhattan (Fps) 3670 vs 813
GFXBench 4.0 - T-Rex (Fps) 3341 vs 699

Reasons to consider the ATI Mobility Radeon HD 4250 IGP

  • Around 75% better performance in PassMark - G2D Mark: 280 vs 160
Benchmarks
PassMark - G2D Mark 280 vs 160

Compare benchmarks

GPU 1: NVIDIA GeForce GT 645M
GPU 2: ATI Mobility Radeon HD 4250 IGP

PassMark - G3D Mark
GPU 1
GPU 2
935
98
PassMark - G2D Mark
GPU 1
GPU 2
160
280
GFXBench 4.0 - Manhattan (Frames)
GPU 1
GPU 2
3670
813
GFXBench 4.0 - T-Rex (Frames)
GPU 1
GPU 2
3341
699
GFXBench 4.0 - Manhattan (Fps)
GPU 1
GPU 2
3670
813
GFXBench 4.0 - T-Rex (Fps)
GPU 1
GPU 2
3341
699
Name NVIDIA GeForce GT 645M ATI Mobility Radeon HD 4250 IGP
PassMark - G3D Mark 935 98
PassMark - G2D Mark 160 280
Geekbench - OpenCL 2673
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
GFXBench 4.0 - Car Chase Offscreen (Frames) 1913
GFXBench 4.0 - Manhattan (Frames) 3670 813
GFXBench 4.0 - T-Rex (Frames) 3341 699
GFXBench 4.0 - Car Chase Offscreen (Fps) 1913
GFXBench 4.0 - Manhattan (Fps) 3670 813
GFXBench 4.0 - T-Rex (Fps) 3341 699

Compare specifications (specs)

NVIDIA GeForce GT 645M ATI Mobility Radeon HD 4250 IGP

Essentials

Architecture Kepler TeraScale
Code name GK107 RS880
Launch date 1 October 2012 1 May 2010
Place in performance rating 1213 1215
Type Laptop Desktop

Technical info

CUDA cores 384
Floating-point performance 544.5 gflops
Manufacturing process technology 28 nm 55 nm
Pipelines 384
Texture fill rate 22.7 billion / sec
Thermal Design Power (TDP) 32 Watt
Transistor count 1,270 million 181 million
Core clock speed 500 MHz

Video outputs and ports

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

Compatibility, dimensions and requirements

Bus support PCI Express 2.0, PCI Express 3.0
Interface PCIe 3.0 x16 PCI
Laptop size medium sized
Supplementary power connectors None

API support

DirectX 12 API 10.1
OpenCL 1.1
OpenGL 4.5 3.3

Memory

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

Technologies

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