NVIDIA GeForce GT 640M Mac Edition vs AMD Radeon HD 7450 OEM

Comparative analysis of NVIDIA GeForce GT 640M Mac Edition and AMD Radeon HD 7450 OEM videocards for all known characteristics in the following categories: Essentials, Technical info, Video outputs and ports, Compatibility, dimensions and requirements, API support, Memory. Benchmark videocards performance analysis: 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), PassMark - G3D Mark, PassMark - G2D Mark, Geekbench - OpenCL.

 

Differences

Reasons to consider the NVIDIA GeForce GT 640M Mac Edition

  • Videocard is newer: launch date 1 year(s) 0 month(s) later
  • Around 19% higher core clock speed: 745 MHz vs 625 MHz
  • 4.8x more texture fill rate: 23.84 GTexel / s vs 5 GTexel / s
  • 2.4x more pipelines: 384 vs 160
  • 2.9x better floating-point performance: 572.2 gflops vs 200.0 gflops
  • A newer manufacturing process allows for a more powerful, yet cooler running videocard: 28 nm vs 40 nm
  • 4.7x more memory clock speed: 5000 MHz vs 1066 MHz
  • 2.3x better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 226.218 vs 99.563
  • 3.9x better performance in GFXBench 4.0 - Car Chase Offscreen (Frames): 1706 vs 443
  • 3.2x better performance in GFXBench 4.0 - Manhattan (Frames): 2983 vs 919
  • 3.4x better performance in GFXBench 4.0 - T-Rex (Frames): 5586 vs 1626
Specifications (specs)
Launch date 3 February 2013 vs 5 January 2012
Core clock speed 745 MHz vs 625 MHz
Texture fill rate 23.84 GTexel / s vs 5 GTexel / s
Pipelines 384 vs 160
Floating-point performance 572.2 gflops vs 200.0 gflops
Manufacturing process technology 28 nm vs 40 nm
Memory clock speed 5000 MHz vs 1066 MHz
Benchmarks
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 226.218 vs 99.563
GFXBench 4.0 - Car Chase Offscreen (Frames) 1706 vs 443
GFXBench 4.0 - Manhattan (Frames) 2983 vs 919
GFXBench 4.0 - T-Rex (Frames) 5586 vs 1626

Reasons to consider the AMD Radeon HD 7450 OEM

  • Around 78% lower typical power consumption: 18 Watt vs 32 Watt
  • 15.3x better performance in GFXBench 4.0 - Car Chase Offscreen (Fps): 443 vs 28.9
  • 19.1x better performance in GFXBench 4.0 - Manhattan (Fps): 919 vs 48.1
  • 16.3x better performance in GFXBench 4.0 - T-Rex (Fps): 1626 vs 99.8
Specifications (specs)
Thermal Design Power (TDP) 18 Watt vs 32 Watt
Benchmarks
GFXBench 4.0 - Car Chase Offscreen (Fps) 443 vs 28.9
GFXBench 4.0 - Manhattan (Fps) 919 vs 48.1
GFXBench 4.0 - T-Rex (Fps) 1626 vs 99.8

Compare benchmarks

GPU 1: NVIDIA GeForce GT 640M Mac Edition
GPU 2: AMD Radeon HD 7450 OEM

CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)
GPU 1
GPU 2
226.218
99.563
GFXBench 4.0 - Car Chase Offscreen (Frames)
GPU 1
GPU 2
1706
443
GFXBench 4.0 - Manhattan (Frames)
GPU 1
GPU 2
2983
919
GFXBench 4.0 - T-Rex (Frames)
GPU 1
GPU 2
5586
1626
GFXBench 4.0 - Car Chase Offscreen (Fps)
GPU 1
GPU 2
28.9
443
GFXBench 4.0 - Manhattan (Fps)
GPU 1
GPU 2
48.1
919
GFXBench 4.0 - T-Rex (Fps)
GPU 1
GPU 2
99.8
1626
Name NVIDIA GeForce GT 640M Mac Edition AMD Radeon HD 7450 OEM
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 6.577
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 226.218 99.563
CompuBench 1.5 Desktop - T-Rex (Frames/s) 0.559
CompuBench 1.5 Desktop - Video Composition (Frames/s) 11.947
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 12.554
GFXBench 4.0 - Car Chase Offscreen (Frames) 1706 443
GFXBench 4.0 - Manhattan (Frames) 2983 919
GFXBench 4.0 - T-Rex (Frames) 5586 1626
GFXBench 4.0 - Car Chase Offscreen (Fps) 28.9 443
GFXBench 4.0 - Manhattan (Fps) 48.1 919
GFXBench 4.0 - T-Rex (Fps) 99.8 1626
PassMark - G3D Mark 225
PassMark - G2D Mark 146
Geekbench - OpenCL 635

Compare specifications (specs)

NVIDIA GeForce GT 640M Mac Edition AMD Radeon HD 7450 OEM

Essentials

Architecture Kepler TeraScale 2
Code name GK107 Caicos
Launch date 3 February 2013 5 January 2012
Place in performance rating 1514 1516
Type Desktop Desktop

Technical info

Core clock speed 745 MHz 625 MHz
Floating-point performance 572.2 gflops 200.0 gflops
Manufacturing process technology 28 nm 40 nm
Pipelines 384 160
Texture fill rate 23.84 GTexel / s 5 GTexel / s
Thermal Design Power (TDP) 32 Watt 18 Watt
Transistor count 1,270 million 370 million

Video outputs and ports

Display Connectors No outputs 1x DVI, 1x HDMI

Compatibility, dimensions and requirements

Interface PCIe 3.0 x16 PCIe 2.0 x16
Length 168 mm
Supplementary power connectors None

API support

DirectX 12.0 (11_0) 11.2 (11_0)
OpenGL 4.6 4.4

Memory

Maximum RAM amount 512 MB 512 MB
Memory bandwidth 40 GB / s 8.528 GB / s
Memory bus width 64 Bit 64 Bit
Memory clock speed 5000 MHz 1066 MHz
Memory type GDDR5 GDDR3