GPUBoss Review Our evaluation of 630M vs 840M among Laptop GPUs under 35W TDP

Gaming

GeForce GT 630M
4.4
GeForce 840M
5.2
GeForce 920M
4.1
Battlefield 3, Battlefield 4, Bioshock Infinite and 21 more

Graphics

GeForce GT 630M
0.0
GeForce 840M
5.0
GeForce 920M
4.4
T-Rex, Manhattan and Cloud Gate Factor

Computing

GeForce GT 630M
0.0
GeForce 840M
0.0
GeForce 920M
0.0
Face Detection, Ocean Surface Simulation and 3 more

Performance per Watt

GeForce GT 630M
2.9
GeForce 840M
4.0
GeForce 920M
3.7
Battlefield 3, Battlefield 4, Bioshock Infinite and 30 more

Value

GeForce GT 630M
0.0
GeForce 840M
1.1
GeForce 920M
0.3
Battlefield 3, Battlefield 4, Bioshock Infinite and 30 more

Noise and Power

GeForce GT 630M
5.0
GeForce 840M
5.0
GeForce 920M
5.0
TDP, Idle Power Consumption, Load Power Consumption and 2 more
3.2

Overall Score

GeForce GT 630M
1.6
GeForce 840M
3.2
GeForce 920M
2.6

Winner
Nvidia GeForce 840M 

GPUBoss recommends the Nvidia GeForce 840M  based on its gaming, benchmarks and compute performance.

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VS

Nvidia GeForce GT 630M

Front view of GeForce GT 630M
Front view of GeForce 840M

Nvidia GeForce 840M

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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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Higher effective memory clock speed 3,600 MHz vs 2,002 MHz Around 80% higher effective memory clock speed
More memory 2,048 MB vs 1,024 MB 2x more memory
Wider memory bus 128 bit vs 64 bit 2x wider memory bus
Higher diablo III framerate 23 fps vs 17.7 fps Around 30% higher diablo III framerate
Front view of GeForce 840M

Reasons to consider the
Nvidia GeForce 840M

Report a correction
Much better T-Rex score 3,359.62 vs 2,994.54 More than 10% better T-Rex score
Higher clock speed 1,029 MHz vs 800 MHz Around 30% higher clock speed
Better 3DMark06 score 2,338 vs 1,051 Around 2.2x better 3DMark06 score
Better 3DMark vantage graphics score 6,627 vs 3,985 More than 65% better 3DMark vantage graphics score
Slightly better PassMark score 879 vs 678 Around 30% better PassMark score
Slightly better 3DMark 11 graphics score 10,332 vs 8,610 20% better 3DMark 11 graphics score
Much higher hitman: absolution framerate 6.7 vs 5.1 More than 30% higher hitman: absolution framerate
Slightly better floating-point performance 790.3 GFLOPS vs 307.2 GFLOPS More than 2.5x better floating-point performance
Better particle simulation score 184.99 mInteraction/s vs 57.64 mInteraction/s Around 3.2x better particle simulation score
More shading units 384 vs 96 288 more shading units
Higher crysis 3 framerate 6.3 fps vs 4.45 fps More than 40% higher crysis 3 framerate
Better cloud gate factor score 10.08 vs 7.71 More than 30% better cloud gate factor score
Better PassMark direct compute score 726 vs 373 Around 95% better PassMark direct compute score
Higher memory clock speed 1,001 MHz vs 900 MHz More than 10% higher memory clock speed

Benchmarks Real world tests of GeForce GT 630M vs 840M

Bitcoin mining Data courtesy CompuBench

GeForce GT 630M
20.98 mHash/s
GeForce 840M
94.68 mHash/s

Face detection Data courtesy CompuBench

GeForce GT 630M
5.06 mPixels/s
GeForce 840M
22.54 mPixels/s

T-Rex (GFXBench 3.0) Data courtesy CompuBench

GeForce GT 630M
2,994.54
GeForce 840M
3,359.62

Manhattan (GFXBench 3.0) Data courtesy CompuBench

GeForce GT 630M
2,068.17
GeForce 840M
1,855.62

Fire Strike Factor Data courtesy FutureMark

GeForce GT 630M
7.52
GeForce 840M
12.59

Sky Diver Factor Data courtesy FutureMark

GeForce GT 630M
60.47
GeForce 840M
120.22

Battlefield 4

GeForce GT 630M
6.3
GeForce 840M
11.2

Bioshock Infinite

GeForce GT 630M
9.1
GeForce 840M
13.55

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