NVIDIA GeForce GT 640 Rev. 2 vs AMD Radeon HD 7620G IGP

Comparative analysis of NVIDIA GeForce GT 640 Rev. 2 and AMD Radeon HD 7620G IGP 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 640 Rev. 2

  • Videocard is newer: launch date 1 year(s) 0 month(s) later
  • 2.9x more core clock speed: 1046 MHz vs 360 MHz
  • A newer manufacturing process allows for a more powerful, yet cooler running videocard: 28 nm vs 32 nm
  • Around 85% better performance in GFXBench 4.0 - Manhattan (Frames): 3354 vs 1810
  • Around 85% better performance in GFXBench 4.0 - Manhattan (Fps): 3354 vs 1810
Specifications (specs)
Launch date 29 May 2013 vs 15 May 2012
Core clock speed 1046 MHz vs 360 MHz
Manufacturing process technology 28 nm vs 32 nm
Benchmarks
GFXBench 4.0 - Manhattan (Frames) 3354 vs 1810
GFXBench 4.0 - Manhattan (Fps) 3354 vs 1810

Reasons to consider the AMD Radeon HD 7620G IGP

  • Around 96% lower typical power consumption: 25 Watt vs 49 Watt
  • Around 4% better performance in GFXBench 4.0 - T-Rex (Frames): 3357 vs 3220
  • Around 4% better performance in GFXBench 4.0 - T-Rex (Fps): 3357 vs 3220
Specifications (specs)
Thermal Design Power (TDP) 25 Watt vs 49 Watt
Benchmarks
GFXBench 4.0 - T-Rex (Frames) 3357 vs 3220
GFXBench 4.0 - T-Rex (Fps) 3357 vs 3220

Compare benchmarks

GPU 1: NVIDIA GeForce GT 640 Rev. 2
GPU 2: AMD Radeon HD 7620G IGP

GFXBench 4.0 - Manhattan (Frames)
GPU 1
GPU 2
3354
1810
GFXBench 4.0 - T-Rex (Frames)
GPU 1
GPU 2
3220
3357
GFXBench 4.0 - Manhattan (Fps)
GPU 1
GPU 2
3354
1810
GFXBench 4.0 - T-Rex (Fps)
GPU 1
GPU 2
3220
3357
Name NVIDIA GeForce GT 640 Rev. 2 AMD Radeon HD 7620G IGP
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 10.475
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 173.537
CompuBench 1.5 Desktop - T-Rex (Frames/s) 0.032
CompuBench 1.5 Desktop - Video Composition (Frames/s) 8.717
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 10.454
GFXBench 4.0 - Car Chase Offscreen (Frames) 2309
GFXBench 4.0 - Manhattan (Frames) 3354 1810
GFXBench 4.0 - T-Rex (Frames) 3220 3357
GFXBench 4.0 - Car Chase Offscreen (Fps) 2309
GFXBench 4.0 - Manhattan (Fps) 3354 1810
GFXBench 4.0 - T-Rex (Fps) 3220 3357
PassMark - G3D Mark 364
PassMark - G2D Mark 111
Geekbench - OpenCL 1232

Compare specifications (specs)

NVIDIA GeForce GT 640 Rev. 2 AMD Radeon HD 7620G IGP

Essentials

Architecture Kepler 2.0 TeraScale 3
Code name GK208 Devastator
Launch date 29 May 2013 15 May 2012
Launch price (MSRP) $89
Place in performance rating 1250 1252
Type Desktop Desktop

Technical info

Core clock speed 1046 MHz 360 MHz
Floating-point performance 803.3 gflops
Manufacturing process technology 28 nm 32 nm
Pipelines 384
Texture fill rate 16.74 GTexel / s
Thermal Design Power (TDP) 49 Watt 25 Watt
Boost clock speed 497 MHz
Transistor count 1,303 million

Video outputs and ports

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

Compatibility, dimensions and requirements

Interface PCIe 2.0 x8 IGP
Length 145 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 1 GB
Memory bandwidth 40.06 GB / s
Memory bus width 64 Bit
Memory clock speed 5008 MHz
Memory type GDDR5