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.

AMD Radeon HD 7420G IGP

NVIDIA GeForce GT 640

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		1173
PassMark - G2D Mark		292
Geekbench - OpenCL		3727
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