NVIDIA GeForce GTX 660 Rev. 2 vs NVIDIA GeForce 800M

Comparative analysis of NVIDIA GeForce GTX 660 Rev. 2 and NVIDIA GeForce 800M 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: CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), PassMark - G3D Mark, PassMark - G2D Mark, Geekbench - OpenCL, CompuBench 1.5 Desktop - Ocean Surface Simulation (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).

NVIDIA GeForce GTX 660 Rev. 2

NVIDIA GeForce 800M

Differences

Reasons to consider the NVIDIA GeForce GTX 660 Rev. 2

Videocard is newer: launch date 5 month(s) later
Around 33% higher core clock speed: 980 MHz vs 738 MHz
14x more texture fill rate: 82.56 GTexel / s vs 5.904 GTexel / s
20x more pipelines: 960 vs 48
14x better floating-point performance: 1,981 gflops vs 141.7 gflops
2x more maximum memory size: 2 GB vs 1 GB
3.3x more memory clock speed: 6008 MHz vs 1800 MHz
8x better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 39.216 vs 4.91

Specifications (specs)
Launch date	13 September 2014 vs 17 March 2014
Core clock speed	980 MHz vs 738 MHz
Texture fill rate	82.56 GTexel / s vs 5.904 GTexel / s
Pipelines	960 vs 48
Floating-point performance	1,981 gflops vs 141.7 gflops
Maximum memory size	2 GB vs 1 GB
Memory clock speed	6008 MHz vs 1800 MHz
Benchmarks
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	39.216 vs 4.91

Reasons to consider the NVIDIA GeForce 800M

9.3x lower typical power consumption: 15 Watt vs 140 Watt

Thermal Design Power (TDP)	15 Watt vs 140 Watt

Compare benchmarks

GPU 1: NVIDIA GeForce GTX 660 Rev. 2
GPU 2: NVIDIA GeForce 800M

CompuBench 1.5 Desktop - Face Detection (mPixels/s)

GPU 1

GPU 2

39.216

4.91

Name	NVIDIA GeForce GTX 660 Rev. 2	NVIDIA GeForce 800M
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	39.216	4.91
CompuBench 1.5 Desktop - T-Rex (Frames/s)	1.173
PassMark - G3D Mark		477
PassMark - G2D Mark		195
Geekbench - OpenCL		1303
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)		109.13
CompuBench 1.5 Desktop - Video Composition (Frames/s)		7.249
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)		15.218
GFXBench 4.0 - Car Chase Offscreen (Frames)		703
GFXBench 4.0 - Manhattan (Frames)		1123
GFXBench 4.0 - T-Rex (Frames)		1601
GFXBench 4.0 - Car Chase Offscreen (Fps)		703
GFXBench 4.0 - Manhattan (Fps)		1123
GFXBench 4.0 - T-Rex (Fps)		1601

Compare specifications (specs)

	NVIDIA GeForce GTX 660 Rev. 2	NVIDIA GeForce 800M
Essentials
Architecture	Kepler	Fermi 2.0
Code name	GK104	GF117
Launch date	13 September 2014	17 March 2014
Place in performance rating	1510	1511
Type	Desktop	Desktop
Technical info
Boost clock speed	1032 MHz
Core clock speed	980 MHz	738 MHz
Floating-point performance	1,981 gflops	141.7 gflops
Manufacturing process technology	28 nm	28 nm
Pipelines	960	48
Texture fill rate	82.56 GTexel / s	5.904 GTexel / s
Thermal Design Power (TDP)	140 Watt	15 Watt
Transistor count	3,540 million	585 million
Video outputs and ports
Display Connectors	2x DVI, 1x HDMI, 1x DisplayPort	No outputs
Compatibility, dimensions and requirements
Interface	PCIe 3.0 x16	PCIe 2.0 x16
Length	241 mm
Supplementary power connectors	1x 6-pin
Bus support		PCI Express 3.0
API support
DirectX	12.0 (11_0)	12.0 (11_0)
OpenGL	4.6	4.5
Memory
Maximum RAM amount	2 GB	1 GB
Memory bandwidth	144.2 GB / s	14.4 GB / s
Memory bus width	192 Bit	64 Bit
Memory clock speed	6008 MHz	1800 MHz
Memory type	GDDR5	DDR3
Technologies
CUDA
GameWorks
GPU Boost
Optimus