NVIDIA GeForce 840M vs AMD Radeon HD 7620G IGP

Comparative analysis of NVIDIA GeForce 840M 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, 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), 3DMark Fire Strike - Graphics Score.

NVIDIA GeForce 840M

AMD Radeon HD 7620G IGP

Differences

Reasons to consider the NVIDIA GeForce 840M

Videocard is newer: launch date 1 year(s) 9 month(s) later
2.9x more core clock speed: 1029 MHz vs 360 MHz
2.3x more boost clock speed: 1124 MHz vs 497 MHz
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 28 nm vs 32 nm
3x better performance in PassMark - G3D Mark: 1087 vs 364
Around 33% better performance in PassMark - G2D Mark: 149 vs 112
4.6x better performance in Geekbench - OpenCL: 5620 vs 1232
Around 51% better performance in GFXBench 4.0 - Manhattan (Frames): 2736 vs 1810
Around 51% better performance in GFXBench 4.0 - Manhattan (Fps): 2736 vs 1810

Specifications (specs)
Launch date	12 March 2014 vs 15 May 2012
Core clock speed	1029 MHz vs 360 MHz
Boost clock speed	1124 MHz vs 497 MHz
Manufacturing process technology	28 nm vs 32 nm
Benchmarks
PassMark - G3D Mark	1087 vs 364
PassMark - G2D Mark	149 vs 112
Geekbench - OpenCL	5620 vs 1232
GFXBench 4.0 - Manhattan (Frames)	2736 vs 1810
GFXBench 4.0 - Manhattan (Fps)	2736 vs 1810

Reasons to consider the AMD Radeon HD 7620G IGP

Around 32% lower typical power consumption: 25 Watt vs 33 Watt
Around 5% better performance in GFXBench 4.0 - T-Rex (Frames): 3357 vs 3191
Around 5% better performance in GFXBench 4.0 - T-Rex (Fps): 3357 vs 3191

Specifications (specs)
Thermal Design Power (TDP)	25 Watt vs 33 Watt
Benchmarks
GFXBench 4.0 - T-Rex (Frames)	3357 vs 3191
GFXBench 4.0 - T-Rex (Fps)	3357 vs 3191

Compare benchmarks

GPU 1: NVIDIA GeForce 840M
GPU 2: AMD Radeon HD 7620G IGP

PassMark - G3D Mark

GPU 1

GPU 2

1087

364

PassMark - G2D Mark

GPU 1

GPU 2

149

112

Geekbench - OpenCL

GPU 1

GPU 2

5620

1232

GFXBench 4.0 - Manhattan (Frames)

GPU 1

GPU 2

2736

1810

GFXBench 4.0 - T-Rex (Frames)

GPU 1

GPU 2

3191

3357

GFXBench 4.0 - Manhattan (Fps)

GPU 1

GPU 2

2736

1810

GFXBench 4.0 - T-Rex (Fps)

GPU 1

GPU 2

3191

3357

Name	NVIDIA GeForce 840M	AMD Radeon HD 7620G IGP
PassMark - G3D Mark	1087	364
PassMark - G2D Mark	149	112
Geekbench - OpenCL	5620	1232
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	22.848
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	162.594
CompuBench 1.5 Desktop - T-Rex (Frames/s)	1.237
CompuBench 1.5 Desktop - Video Composition (Frames/s)	21.15
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	95.545
GFXBench 4.0 - Car Chase Offscreen (Frames)	2085
GFXBench 4.0 - Manhattan (Frames)	2736	1810
GFXBench 4.0 - T-Rex (Frames)	3191	3357
GFXBench 4.0 - Car Chase Offscreen (Fps)	2085
GFXBench 4.0 - Manhattan (Fps)	2736	1810
GFXBench 4.0 - T-Rex (Fps)	3191	3357
3DMark Fire Strike - Graphics Score	503

Compare specifications (specs)

	NVIDIA GeForce 840M	AMD Radeon HD 7620G IGP
Essentials
Architecture	Maxwell	TeraScale 3
Code name	GM108	Devastator
Launch date	12 March 2014	15 May 2012
Place in performance rating	1268	1253
Type	Laptop	Desktop
Technical info
Boost clock speed	1124 MHz	497 MHz
Core clock speed	1029 MHz	360 MHz
Floating-point performance	863.2 gflops
Manufacturing process technology	28 nm	32 nm
Pipelines	384
Texture fill rate	17.98 GTexel / s
Thermal Design Power (TDP)	33 Watt	25 Watt
Transistor count		1,303 million
Video outputs and ports
Display Connectors	No outputs	No outputs
Compatibility, dimensions and requirements
Bus support	PCI Express 2.0, PCI Express 3.0
Interface	PCIe 3.0 x8	IGP
Laptop size	medium sized
API support
DirectX	12.0 (11_0)	11.2 (11_0)
OpenGL	4.5	4.4
Memory
Maximum RAM amount	4 GB
Memory bandwidth	16.02 GB / s
Memory bus width	64 Bit
Memory clock speed	2002 MHz
Memory type	DDR3
Shared memory	0
Technologies
CUDA
GameWorks
GeForce Experience
GPU Boost
Optimus