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Differences What are the advantages of each

Front view of GeForce GTX 470M

Reasons to consider the
Nvidia GeForce GTX 470M

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Significantly better PassMark score 1,949 vs 879 Around 2.2x better PassMark score
Better 3DMark 11 graphics score 16,562 vs 10,332 More than 60% better 3DMark 11 graphics score
Higher memory bandwidth 72 GB/s vs 16.02 GB/s Around 4.5x higher memory bandwidth
Higher effective memory clock speed 3,000 MHz vs 2,002 MHz Around 50% higher effective memory clock speed
Slightly better 3DMark vantage graphics score 8,561 vs 6,627 Around 30% better 3DMark vantage graphics score
More render output processors 24 vs 8 Three times as many render output processors
Significantly wider memory bus 192 bit vs 64 bit 3x wider memory bus
More texture mapping units 48 vs 16 Three times as many texture mapping units
Front view of GeForce 840M

Reasons to consider the
Nvidia GeForce 840M

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Much higher clock speed 1,029 MHz vs 535 MHz More than 90% higher clock speed
Higher memory clock speed 1,001 MHz vs 750 MHz Around 35% higher memory clock speed
Lower TDP 33W vs 75W 2.3x lower TDP

Benchmarks Real world tests of GeForce GTX 470M vs 840M

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

3DMark 11 Graphics Industry standard benchmark that tests DirectX 11 GPU performance

3DMark Vantage Graphics Industry standard benchmark that tests DirectX 10 GPU performance

3DMark06 Industry standard benchmark that tests DirectX 9 GPU performance

Fire Strike Factor Data courtesy FutureMark

Sky Diver Factor Data courtesy FutureMark

Cloud Gate Factor Data courtesy FutureMark

PassMark Direct Compute Measures performance of general-purpose computing using Microsoft DirectCompute

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