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Differences What are the advantages of each

Front view of Mobility Radeon HD 3670

Reasons to consider the
ATi Mobility Radeon HD 3670

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Slightly higher clock speed 680 MHz vs 625 MHz Around 10% higher clock speed
Wider memory bus 128 bit vs 64 bit 2x wider memory bus
Front view of GeForce GT 720M

Reasons to consider the
Nvidia GeForce GT 720M

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More memory 2,048 MB vs 256 MB 8x more memory
Better PassMark score 542 vs 250 Around 2.2x better PassMark score

Benchmarks Real world tests of Mobility Radeon HD 3670 vs GeForce GT 720M

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

Features Key features of the Mobility Radeon HD 3670  vs GeForce GT 720M 

memory bandwidth Rate at which data can be read from or stored in onboard memory

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

Mobility Radeon HD 3670
2.72 GPixel/s
GeForce GT 720M
2.5 GPixel/s

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

Mobility Radeon HD 3670
5.44 GTexel/s
GeForce GT 720M
10 GTexel/s

floating point performance How fast the gpu can crunch numbers

GeForce GT 720M
240 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

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