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Differences What are the advantages of each

Front view of GeForce GT 630M

Reasons to consider the
Nvidia GeForce GT 630M

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Significantly higher clock speed 800 MHz vs 450 MHz Around 80% higher clock speed
Front view of GeForce 9100M G mGPU

Reasons to consider the
Nvidia GeForce 9100M G mGPU

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Slightly lower TDP 12W vs 33W 2.7x lower TDP

Features Key features of the GeForce GT 630M  vs 9100M G mGPU 

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

GeForce GT 630M
3.2 GPixel/s
GeForce 9100M G mGPU
1.8 GPixel/s

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

GeForce GT 630M
12.8 GTexel/s
GeForce 9100M G mGPU
3.6 GTexel/s

floating point performance How fast the gpu can crunch numbers

GeForce GT 630M
307.2 GFLOPS
GeForce 9100M G mGPU
17.6 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 GT 630M  vs
9100M G mGPU 
GPU brand Nvidia Nvidia
GPU name GF117 MCP77MH
Clock speed 800 MHz 450 MHz
Is dual GPU No No
Reference card Nvidia GeForce GT 630M 660 MHz 1 GB None

noise and power

TDP 33W 12W

raw performance

GeForce GT 630M  vs
9100M G mGPU 
Shading units 96 8
Texture mapping units 16 8
Render output processors 4 4
Pixel rate 3.2 GPixel/s 1.8 GPixel/s
Texture rate 12.8 GTexel/s 3.6 GTexel/s
Floating-point performance 307.2 GFLOPS 17.6 GFLOPS

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