AMD Radeon HD 7420G IGP vs NVIDIA GeForce GT 640

Comparative analysis of AMD Radeon HD 7420G IGP and NVIDIA GeForce GT 640 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: 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.

 

Differences

Reasons to consider the AMD Radeon HD 7420G IGP

  • Around 86% lower typical power consumption: 35 Watt vs 65 Watt
Thermal Design Power (TDP) 35 Watt vs 65 Watt

Reasons to consider the NVIDIA GeForce GT 640

  • Around 88% higher core clock speed: 902 MHz vs 480 MHz
  • A newer manufacturing process allows for a more powerful, yet cooler running videocard: 28 nm vs 32 nm
Core clock speed 902 MHz vs 480 MHz
Manufacturing process technology 28 nm vs 32 nm

Compare benchmarks

GPU 1: AMD Radeon HD 7420G IGP
GPU 2: NVIDIA GeForce GT 640

Name AMD Radeon HD 7420G IGP NVIDIA GeForce GT 640
PassMark - G3D Mark 1176
PassMark - G2D Mark 293
Geekbench - OpenCL 3736
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 11.448
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 206.777
CompuBench 1.5 Desktop - T-Rex (Frames/s) 0.792
CompuBench 1.5 Desktop - Video Composition (Frames/s) 14.637
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 20.86
GFXBench 4.0 - Car Chase Offscreen (Frames) 2134
GFXBench 4.0 - Manhattan (Frames) 2375
GFXBench 4.0 - T-Rex (Frames) 3328
GFXBench 4.0 - Car Chase Offscreen (Fps) 2134
GFXBench 4.0 - Manhattan (Fps) 2375
GFXBench 4.0 - T-Rex (Fps) 3328
3DMark Fire Strike - Graphics Score 1565

Compare specifications (specs)

AMD Radeon HD 7420G IGP NVIDIA GeForce GT 640

Essentials

Architecture TeraScale 3 Kepler
Code name Scrapper GK107
Launch date 6 June 2012 5 June 2012
Place in performance rating not rated 1200
Type Desktop Desktop
Launch price (MSRP) $99
Price now $59.99
Value for money (0-100) 25.25

Technical info

Boost clock speed 655 MHz
Core clock speed 480 MHz 902 MHz
Manufacturing process technology 32 nm 28 nm
Thermal Design Power (TDP) 35 Watt 65 Watt
Transistor count 1,303 million 1,270 million
Floating-point performance 692.7 gflops
Pipelines 384
Texture fill rate 28.86 GTexel / s

Video outputs and ports

Display Connectors No outputs 1x DVI, 1x HDMI, 1x DisplayPort

Compatibility, dimensions and requirements

Interface IGP PCIe 3.0 x16
Length 145 mm
Supplementary power connectors None

API support

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

Memory

Maximum RAM amount 2 GB
Memory bandwidth 28.51 GB / s
Memory bus width 128 Bit
Memory clock speed 1782 MHz
Memory type DDR3

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