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Differences What are the advantages of each

Front view of GeForce GTX 660

Reasons to consider the
Nvidia GeForce GTX 660

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Significantly higher clock speed 823 MHz vs 400 MHz More than 2x higher clock speed
Better floating-point performance 1,896.2 GFLOPS vs 25.6 GFLOPS More than 74x better floating-point performance
Higher texture rate 79 GTexel/s vs 3.2 GTexel/s Around 24.8x higher texture rate
Significantly more texture mapping units 96 vs 8 88 more texture mapping units
Significantly more render output processors 32 vs 4 28 more render output processors
Higher pixel rate 19.75 GPixel/s vs 1.6 GPixel/s More than 12.2x higher pixel rate
More shading units 1,152 vs 16 1136 more shading units
Front view of GeForce 8200M G mGPU Intel

Reasons to consider the
Intel GeForce 8200M G mGPU Intel

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Significantly lower TDP 12W vs 130W 10.8x lower TDP

Features Key features of the GeForce GTX 660  vs 8200M G mGPU Intel 

pixel rate Number of pixels a graphics card can render to the screen every second

GeForce GTX 660
19.75 GPixel/s

texture rate Speed at which a graphics card can perform texture mapping

GeForce GTX 660
79 GTexel/s

floating point performance How fast the gpu can crunch numbers

GeForce GTX 660
1,896.2 GFLOPS

shading units Subcomponents of the gpu, these run in parallel to enable fast pixel shading

texture mapping units Built into each gpu, these resize and rotate bitmaps for texturing scenes

render output processors GPU commponents responsible for transform pixels as they flow between memory buffers

Specifications Full list of technical specs

gpu

GeForce GTX 660  vs
8200M G mGPU Intel 
GPU brand Nvidia Nvidia
GPU name GK104 MCP79
Clock speed 823 MHz 400 MHz
Is dual GPU No No
Reference card Nvidia GeForce GTX 660 980 MHz 2 GB None

noise and power

TDP 130W 12W

raw performance

GeForce GTX 660  vs
8200M G mGPU Intel 
Shading units 1,152 16
Texture mapping units 96 8
Render output processors 32 4
Pixel rate 19.75 GPixel/s 1.6 GPixel/s
Texture rate 79 GTexel/s 3.2 GTexel/s
Floating-point performance 1,896.2 GFLOPS 25.6 GFLOPS

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