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Differences What are the advantages of each

Front view of Mobility Radeon HD 4850

Reasons to consider the
ATi Mobility Radeon HD 4850

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Higher memory bandwidth 54.4 GB/s vs 16.02 GB/s Around 3.5x higher memory bandwidth
Much wider memory bus 256 bit vs 64 bit 4x wider memory bus
More shading units 800 vs 384 416 more shading units
More texture mapping units 40 vs 16 24 more texture mapping units
More render output processors 16 vs 8 Twice as many render output processors
Slightly better cloud gate factor score 12.33 vs 10.08 More than 20% better cloud gate factor score
Front view of GeForce 840M

Reasons to consider the
Nvidia GeForce 840M

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Much better T-Rex score 3,359.62 vs 2,486.38 More than 35% better T-Rex score
Much higher clock speed 1,029 MHz vs 500 MHz More than 2x higher clock speed
Higher memory clock speed 1,001 MHz vs 850 MHz Around 20% higher memory clock speed

Benchmarks Real world tests of Mobility Radeon HD 4850 vs GeForce 840M

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

T-Rex (GFXBench 3.0) Data courtesy CompuBench

Cloud Gate Factor Data courtesy FutureMark


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