GPUBoss Review Our evaluation of 820M vs 940M 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

7.8

Overall Score

Winner
Nvidia GeForce 940M 

GPUBoss recommends the Nvidia GeForce 940M  based on its benchmarks and compute performance.

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VS
Front view of GeForce 940M

Nvidia GeForce 940M

GPUBoss Winner

Differences What are the advantages of each

Front view of GeForce GT 820M

Reasons to consider the
Nvidia GeForce GT 820M

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Lower TDP 15W vs 33W 2.2x lower TDP
Front view of GeForce 940M

Reasons to consider the
Nvidia GeForce 940M

Report a correction
Significantly higher clock speed 1,072 MHz vs 775 MHz Around 40% higher clock speed
Better PassMark score 952 vs 640 Around 50% better PassMark score
More memory 2,048 MB vs 1,024 MB 2x more memory
Significantly better particle simulation score 262.54 mInteraction/s vs 54.69 mInteraction/s More than 4.8x better particle simulation score
Slightly better floating-point performance 823.3 GFLOPS vs 297.6 GFLOPS More than 2.8x better floating-point performance
More shading units 384 vs 96 288 more shading units

Benchmarks Real world tests of GeForce GT 820M vs 940M

Bitcoin mining Data courtesy CompuBench

GeForce GT 820M
17.75 mHash/s
GeForce 940M
101.37 mHash/s

Face detection Data courtesy CompuBench

GeForce GT 820M
6.38 mPixels/s
GeForce 940M
25.83 mPixels/s

Ocean surface simulation Data courtesy CompuBench

GeForce GT 820M
161.29 frames/s
GeForce 940M
168.16 frames/s

Particle simulation Data courtesy CompuBench

GeForce GT 820M
54.69 mInteraction/s
GeForce 940M
262.54 mInteraction/s

T-Rex (Compubench 1.5) Data courtesy CompuBench

GeForce GT 820M
0.55 frames/s
GeForce 940M
1.31 frames/s

Video composition Data courtesy CompuBench

GeForce GT 820M
11.86 frames/s
GeForce 940M
21.82 frames/s

T-Rex (GFXBench 3.0) Data courtesy CompuBench

GeForce GT 820M
3,359.4
GeForce 940M
3,360.76

Manhattan (GFXBench 3.0) Data courtesy CompuBench

GeForce GT 820M
3,428.68
GeForce 940M
3,575.1

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