GPUBoss Review Our evaluation of 6770M vs 840M among Laptop GPUs

Gaming

Battlefield 3, Battlefield 4, Bioshock Infinite and 21 more

Graphics

T-Rex, Manhattan, Cloud Gate Factor, Sky Diver Factor and 1 more

Computing

Face Detection, Ocean Surface Simulation and 3 more

Performance per Watt

Battlefield 3, Battlefield 4, Bioshock Infinite and 32 more

Value

Battlefield 3, Battlefield 4, Bioshock Infinite and 32 more

Noise and Power

TDP, Idle Power Consumption, Load Power Consumption and 2 more

5.9

Overall Score

Winner
Nvidia GeForce 840M 

GPUBoss recommends the Nvidia GeForce 840M  based on its benchmarks.

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VS

Differences What are the advantages of each

Front view of Radeon HD 6770M

Reasons to consider the
AMD Radeon HD 6770M

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Higher effective memory clock speed 3,600 MHz vs 2,002 MHz Around 80% higher effective memory clock speed
Higher memory bandwidth 57.6 GB/s vs 16.02 GB/s More than 3.5x higher memory bandwidth
Wider memory bus 128 bit vs 64 bit 2x wider memory bus
Front view of GeForce 840M

Reasons to consider the
Nvidia GeForce 840M

Report a correction
Significantly higher clock speed 1,029 MHz vs 725 MHz More than 40% higher clock speed
Better 3DMark06 score 2,338 vs 1,328 More than 75% better 3DMark06 score
Better particle simulation score 184.99 mInteraction/s vs 77.14 mInteraction/s Around 2.5x better particle simulation score
Higher memory clock speed 1,001 MHz vs 900 MHz More than 10% higher memory clock speed

Benchmarks Real world tests of Radeon HD 6770M vs GeForce 840M

Bitcoin mining Data courtesy CompuBench

Radeon HD 6770M
33.39 mHash/s
GeForce 840M
94.68 mHash/s

Face detection Data courtesy CompuBench

Radeon HD 6770M
4.82 mPixels/s
GeForce 840M
22.54 mPixels/s

Ocean surface simulation Data courtesy CompuBench

Radeon HD 6770M
234.83 frames/s
GeForce 840M
159.36 frames/s

Particle simulation Data courtesy CompuBench

Radeon HD 6770M
77.14 mInteraction/s
GeForce 840M
184.99 mInteraction/s

T-Rex (Compubench 1.5) Data courtesy CompuBench

Radeon HD 6770M
0.39 frames/s
GeForce 840M
1.23 frames/s

Fire Strike Factor Data courtesy FutureMark

Sky Diver Factor Data courtesy FutureMark

Cloud Gate Factor Data courtesy FutureMark

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