GPUBoss Review Our evaluation of 940MX vs 840M among Laptop GPUs under 35W TDP

Gaming

Battlefield 3, Battlefield 4, Bioshock Infinite and 21 more

Graphics

T-Rex, Manhattan and Cloud Gate Factor

Computing

Face Detection, Ocean Surface Simulation and 3 more

Performance per Watt

Battlefield 3, Battlefield 4, Bioshock Infinite and 30 more

Value

Battlefield 3, Battlefield 4, Bioshock Infinite and 30 more

Noise and Power

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

7.9

Overall Score

Winner
Nvidia GeForce 940MX 

GPUBoss recommends the Nvidia GeForce 940MX  based on its benchmarks.

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VS

Differences What are the advantages of each

Front view of GeForce 940MX

Reasons to consider the
Nvidia GeForce 940MX

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Higher clock speed 1,122 MHz vs 1,029 MHz Around 10% higher clock speed
Better 3DMark 11 graphics score 14,211 vs 10,332 Around 40% better 3DMark 11 graphics score
More memory 2,048 MB vs 1,024 MB 2x more memory
Higher turbo clock speed 1,242 MHz vs 1,124 MHz More than 10% higher turbo clock speed
Slightly higher texture rate 26.93 GTexel/s vs 16.46 GTexel/s Around 65% higher texture rate
Better ocean surface simulation score 383.76 frames/s vs 159.82 frames/s Around 2.5x better ocean surface simulation score
Front view of GeForce 840M

Reasons to consider the
Nvidia GeForce 840M

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GPUBoss is not aware of any important advantages of the 840M vs the 940MX.

Benchmarks Real world tests of GeForce 940MX vs 840M

Bitcoin mining Data courtesy CompuBench

GeForce 940MX
101.62 mHash/s
GeForce 840M
91.6 mHash/s

Face detection Data courtesy CompuBench

GeForce 940MX
29.5 mPixels/s
GeForce 840M
22.29 mPixels/s

T-Rex (GFXBench 3.0) Data courtesy CompuBench

GeForce 940MX
3,352.72
GeForce 840M
3,359.61

Manhattan (GFXBench 3.0) Data courtesy CompuBench

GeForce 940MX
3,712.53
GeForce 840M
3,718.04

Fire Strike Factor Data courtesy FutureMark

Sky Diver Factor Data courtesy FutureMark

GeForce 940MX
167.45
GeForce 840M
119.12

Thief

Battlefield 4

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