NVIDIA GeForce GTX 660 Rev. 2 vs NVIDIA GeForce GT 420M

Comparative analysis of NVIDIA GeForce GTX 660 Rev. 2 and NVIDIA GeForce GT 420M 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 - 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 GT 420M

Differences

Reasons to consider the NVIDIA GeForce GTX 660 Rev. 2

Videocard is newer: launch date 4 year(s) 0 month(s) later
13.8x more texture fill rate: 82.56 GTexel / s vs 6.0 billion / sec
10x more pipelines: 960 vs 96
10.3x better floating-point performance: 1,981 gflops vs 192 gflops
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 28 nm vs 40 nm
4x more maximum memory size: 2 GB vs 512 MB
7.5x more memory clock speed: 6008 MHz vs 800 MHz
9.1x better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 39.216 vs 4.329
2.8x better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 1.173 vs 0.426

Specifications (specs)
Launch date	13 September 2014 vs 3 September 2010
Texture fill rate	82.56 GTexel / s vs 6.0 billion / sec
Pipelines	960 vs 96
Floating-point performance	1,981 gflops vs 192 gflops
Manufacturing process technology	28 nm vs 40 nm
Maximum memory size	2 GB vs 512 MB
Memory clock speed	6008 MHz vs 800 MHz
Benchmarks
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	39.216 vs 4.329
CompuBench 1.5 Desktop - T-Rex (Frames/s)	1.173 vs 0.426

Reasons to consider the NVIDIA GeForce GT 420M

Around 2% higher core clock speed: 1000 MHz vs 980 MHz
6.1x lower typical power consumption: 23 Watt vs 140 Watt

Core clock speed	1000 MHz vs 980 MHz
Thermal Design Power (TDP)	23 Watt vs 140 Watt

Compare benchmarks

GPU 1: NVIDIA GeForce GTX 660 Rev. 2
GPU 2: NVIDIA GeForce GT 420M

CompuBench 1.5 Desktop - Face Detection (mPixels/s)

GPU 1

GPU 2

39.216

4.329

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

GPU 1

GPU 2

1.173

0.426

Name	NVIDIA GeForce GTX 660 Rev. 2	NVIDIA GeForce GT 420M
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	39.216	4.329
CompuBench 1.5 Desktop - T-Rex (Frames/s)	1.173	0.426
PassMark - G3D Mark		396
PassMark - G2D Mark		88
Geekbench - OpenCL		1583
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)		162.162
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)		12.306
GFXBench 4.0 - Car Chase Offscreen (Frames)		737
GFXBench 4.0 - Manhattan (Frames)		1731
GFXBench 4.0 - T-Rex (Frames)		2906
GFXBench 4.0 - Car Chase Offscreen (Fps)		737
GFXBench 4.0 - Manhattan (Fps)		1731
GFXBench 4.0 - T-Rex (Fps)		2906

Compare specifications (specs)

	NVIDIA GeForce GTX 660 Rev. 2	NVIDIA GeForce GT 420M
Essentials
Architecture	Kepler	Fermi
Code name	GK104	GF108
Launch date	13 September 2014	3 September 2010
Place in performance rating	1512	1509
Type	Desktop	Laptop
Technical info
Boost clock speed	1032 MHz
Core clock speed	980 MHz	1000 MHz
Floating-point performance	1,981 gflops	192 gflops
Manufacturing process technology	28 nm	40 nm
Pipelines	960	96
Texture fill rate	82.56 GTexel / s	6.0 billion / sec
Thermal Design Power (TDP)	140 Watt	23 Watt
Transistor count	3,540 million	585 million
CUDA cores		96
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
Laptop size		medium sized
API support
DirectX	12.0 (11_0)	12 API
OpenGL	4.6	4.5
OpenCL		1.1
Memory
Maximum RAM amount	2 GB	512 MB
Memory bandwidth	144.2 GB / s	25.6 GB / s
Memory bus width	192 Bit	128 Bit
Memory clock speed	6008 MHz	800 MHz
Memory type	GDDR5	(G)DDR3
Shared memory		0
Technologies
CUDA