NVIDIA GeForce 840M vs ATI FirePro M7820

Comparative analysis of NVIDIA GeForce 840M and ATI FirePro M7820 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

ATI FirePro M7820

Differences

Reasons to consider the NVIDIA GeForce 840M

Videocard is newer: launch date 3 year(s) 10 month(s) later
Around 47% higher core clock speed: 1029 MHz vs 700 MHz
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 28 nm vs 40 nm
Around 52% lower typical power consumption: 33 Watt vs 50 Watt
4x more maximum memory size: 4 GB vs 1 GB
4.6x better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 22.848 vs 4.956
Around 42% better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 1.237 vs 0.869
Around 1% better performance in GFXBench 4.0 - Manhattan (Frames): 2736 vs 2709
Around 1% better performance in GFXBench 4.0 - Manhattan (Fps): 2736 vs 2709

Specifications (specs)
Launch date	12 March 2014 vs 1 May 2010
Core clock speed	1029 MHz vs 700 MHz
Manufacturing process technology	28 nm vs 40 nm
Thermal Design Power (TDP)	33 Watt vs 50 Watt
Maximum memory size	4 GB vs 1 GB
Benchmarks
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	22.848 vs 4.956
CompuBench 1.5 Desktop - T-Rex (Frames/s)	1.237 vs 0.869
CompuBench 1.5 Desktop - Video Composition (Frames/s)	21.15 vs 21.146
GFXBench 4.0 - Manhattan (Frames)	2736 vs 2709
GFXBench 4.0 - Manhattan (Fps)	2736 vs 2709

Reasons to consider the ATI FirePro M7820

Around 56% higher texture fill rate: 28 GTexel / s vs 17.98 GTexel / s
2.1x more pipelines: 800 vs 384
Around 30% better floating-point performance: 1,120.0 gflops vs 863.2 gflops
2x more memory clock speed: 4000 MHz vs 2002 MHz
2.8x better performance in Geekbench - OpenCL: 15792 vs 5630
3.7x better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 600.944 vs 162.594
Around 9% better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 103.902 vs 95.545

Specifications (specs)
Texture fill rate	28 GTexel / s vs 17.98 GTexel / s
Pipelines	800 vs 384
Floating-point performance	1,120.0 gflops vs 863.2 gflops
Memory clock speed	4000 MHz vs 2002 MHz
Benchmarks
Geekbench - OpenCL	15792 vs 5630
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	600.944 vs 162.594
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	103.902 vs 95.545

Compare benchmarks

GPU 1: NVIDIA GeForce 840M
GPU 2: ATI FirePro M7820

Geekbench - OpenCL

GPU 1

GPU 2

5630

15792

CompuBench 1.5 Desktop - Face Detection (mPixels/s)

GPU 1

GPU 2

22.848

4.956

CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)

GPU 1

GPU 2

162.594

600.944

CompuBench 1.5 Desktop - T-Rex (Frames/s)

GPU 1

GPU 2

1.237

0.869

CompuBench 1.5 Desktop - Video Composition (Frames/s)

GPU 1

GPU 2

21.15

21.146

CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)

GPU 1

GPU 2

95.545

103.902

GFXBench 4.0 - Manhattan (Frames)

GPU 1

GPU 2

2736

2709

GFXBench 4.0 - Manhattan (Fps)

GPU 1

GPU 2

2736

2709

Name	NVIDIA GeForce 840M	ATI FirePro M7820
PassMark - G3D Mark	1088
PassMark - G2D Mark	149
Geekbench - OpenCL	5630	15792
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	22.848	4.956
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	162.594	600.944
CompuBench 1.5 Desktop - T-Rex (Frames/s)	1.237	0.869
CompuBench 1.5 Desktop - Video Composition (Frames/s)	21.15	21.146
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	95.545	103.902
GFXBench 4.0 - Car Chase Offscreen (Frames)	2085
GFXBench 4.0 - Manhattan (Frames)	2736	2709
GFXBench 4.0 - T-Rex (Frames)	3191
GFXBench 4.0 - Car Chase Offscreen (Fps)	2085
GFXBench 4.0 - Manhattan (Fps)	2736	2709
GFXBench 4.0 - T-Rex (Fps)	3191
3DMark Fire Strike - Graphics Score	503

Compare specifications (specs)

	NVIDIA GeForce 840M	ATI FirePro M7820
Essentials
Architecture	Maxwell	TeraScale 2
Code name	GM108	Broadway
Launch date	12 March 2014	1 May 2010
Place in performance rating	1268	1272
Type	Laptop	Mobile workstation
Technical info
Boost clock speed	1124 MHz
Core clock speed	1029 MHz	700 MHz
Floating-point performance	863.2 gflops	1,120.0 gflops
Manufacturing process technology	28 nm	40 nm
Pipelines	384	800
Texture fill rate	17.98 GTexel / s	28 GTexel / s
Thermal Design Power (TDP)	33 Watt	50 Watt
Transistor count		1,040 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	PCIe 2.0 x16
Laptop size	medium sized	large
Supplementary power connectors		None
API support
DirectX	12.0 (11_0)	11.2 (11_0)
OpenGL	4.5	4.4
Memory
Maximum RAM amount	4 GB	1 GB
Memory bandwidth	16.02 GB / s	64.0 GB / s
Memory bus width	64 Bit	128 Bit
Memory clock speed	2002 MHz	4000 MHz
Memory type	DDR3	GDDR5
Shared memory	0	0
Technologies
CUDA
GameWorks
GeForce Experience
GPU Boost
Optimus