NVIDIA GeForce 840M vs NVIDIA GeForce 6800 GT

Comparative analysis of NVIDIA GeForce 840M and NVIDIA GeForce 6800 GT 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

NVIDIA GeForce 6800 GT

Differences

Reasons to consider the NVIDIA GeForce 840M

Videocard is newer: launch date 9 year(s) 10 month(s) later
2.9x more core clock speed: 1029 MHz vs 350 MHz
3.2x more texture fill rate: 17.98 GTexel / s vs 5.6 GTexel / s
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 28 nm vs 130 nm
2x lower typical power consumption: 33 Watt vs 67 Watt
16x more maximum memory size: 4 GB vs 256 MB
2.9x more memory clock speed: 2002 MHz vs 700 MHz
7.7x better performance in PassMark - G3D Mark: 1096 vs 142

Specifications (specs)
Launch date	12 March 2014 vs 14 April 2004
Core clock speed	1029 MHz vs 350 MHz
Texture fill rate	17.98 GTexel / s vs 5.6 GTexel / s
Manufacturing process technology	28 nm vs 130 nm
Thermal Design Power (TDP)	33 Watt vs 67 Watt
Maximum memory size	4 GB vs 256 MB
Memory clock speed	2002 MHz vs 700 MHz
Benchmarks
PassMark - G3D Mark	1096 vs 142

Reasons to consider the NVIDIA GeForce 6800 GT

Around 40% better performance in PassMark - G2D Mark: 212 vs 151

Benchmarks
PassMark - G2D Mark	212 vs 151

Compare benchmarks

GPU 1: NVIDIA GeForce 840M
GPU 2: NVIDIA GeForce 6800 GT

PassMark - G3D Mark

GPU 1

GPU 2

1096

142

PassMark - G2D Mark

GPU 1

GPU 2

151

212

Name	NVIDIA GeForce 840M	NVIDIA GeForce 6800 GT
PassMark - G3D Mark	1096	142
PassMark - G2D Mark	151	212
Geekbench - OpenCL	5771
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
GFXBench 4.0 - T-Rex (Frames)	3191
GFXBench 4.0 - Car Chase Offscreen (Fps)	2085
GFXBench 4.0 - Manhattan (Fps)	2736
GFXBench 4.0 - T-Rex (Fps)	3191
3DMark Fire Strike - Graphics Score	503

Compare specifications (specs)

	NVIDIA GeForce 840M	NVIDIA GeForce 6800 GT
Essentials
Architecture	Maxwell	Curie
Code name	GM108	NV40 A1
Launch date	12 March 2014	14 April 2004
Place in performance rating	1235	849
Type	Laptop	Desktop
Technical info
Boost clock speed	1124 MHz
Core clock speed	1029 MHz	350 MHz
Floating-point performance	863.2 gflops
Manufacturing process technology	28 nm	130 nm
Pipelines	384
Texture fill rate	17.98 GTexel / s	5.6 GTexel / s
Thermal Design Power (TDP)	33 Watt	67 Watt
Transistor count		222 million
Video outputs and ports
Display Connectors	No outputs	1x DVI, 1x VGA, 1x S-Video
Compatibility, dimensions and requirements
Bus support	PCI Express 2.0, PCI Express 3.0
Interface	PCIe 3.0 x8	AGP 8x
Laptop size	medium sized
Supplementary power connectors		1x Molex
API support
DirectX	12.0 (11_0)	9.0c
OpenGL	4.5	2.1
Memory
Maximum RAM amount	4 GB	256 MB
Memory bandwidth	16.02 GB / s	32.0 GB / s
Memory bus width	64 Bit	256 Bit
Memory clock speed	2002 MHz	700 MHz
Memory type	DDR3	GDDR3
Shared memory	0
Technologies
CUDA
GameWorks
GeForce Experience
GPU Boost
Optimus