GPUBoss Review Our evaluation of 680MX vs 940MX 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

6.7

Overall Score

Winner
Nvidia GeForce GTX 680MX 

GPUBoss recommends the Nvidia GeForce GTX 680MX  based on its benchmarks and compute performance.

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VS

Differences What are the advantages of each

Front view of GeForce GTX 680MX

Reasons to consider the
Nvidia GeForce GTX 680MX

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Much better PassMark score 4,371 vs 1,225 More than 3.5x better PassMark score
Much higher hitman: absolution framerate 34.4 vs 10.8 Around 3.2x higher hitman: absolution framerate
Much better 3DMark vantage graphics score 25,270 vs 7,646 More than 3.2x better 3DMark vantage graphics score
Much higher memory bandwidth 160 GB/s vs 16.02 GB/s Around 10x higher memory bandwidth
Significantly better 3DMark06 score 6,736 vs 2,834.5 Around 2.5x better 3DMark06 score
Significantly higher effective memory clock speed 5,000 MHz vs 2,002 MHz Around 2.5x higher effective memory clock speed
Much higher memory clock speed 2,500 MHz vs 1,001 MHz Around 2.5x higher memory clock speed
Higher texture rate 92 GTexel/s vs 26.93 GTexel/s Around 3.5x higher texture rate
Many more texture mapping units 128 vs 24 104 more texture mapping units
Better floating-point performance 2,208.8 GFLOPS vs 861.7 GFLOPS More than 2.5x better floating-point performance
Significantly more shading units 1,536 vs 384 1152 more shading units
Significantly more render output processors 32 vs 8 24 more render output processors
Much wider memory bus 256 bit vs 64 bit 4x wider memory bus
Higher pixel rate 23.01 GPixel/s vs 8.98 GPixel/s More than 2.5x higher pixel rate
Significantly better PassMark direct compute score 1,986 vs 912 Around 2.2x better PassMark direct compute score
Front view of GeForce 940MX

Reasons to consider the
Nvidia GeForce 940MX

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Significantly higher clock speed 1,122 MHz vs 719 MHz More than 55% higher clock speed
Better 3DMark 11 graphics score 14,211 vs 6,736 More than 2x better 3DMark 11 graphics score
Significantly lower TDP 23W vs 122W 5.3x lower TDP

Benchmarks Real world tests of GeForce GTX 680MX vs 940MX

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

Bitcoin mining Data courtesy CompuBench

GeForce GTX 680MX
56.71 mHash/s
GeForce 940MX
103.58 mHash/s

Face detection Data courtesy CompuBench

GeForce GTX 680MX
25.42 mPixels/s
GeForce 940MX
30.45 mPixels/s

Ocean surface simulation Data courtesy CompuBench

GeForce GTX 680MX
734.94 frames/s
GeForce 940MX
313.03 frames/s

Particle simulation Data courtesy CompuBench

GeForce GTX 680MX
281.97 mInteraction/s
GeForce 940MX
334.85 mInteraction/s

T-Rex (Compubench 1.5) Data courtesy CompuBench

GeForce GTX 680MX
2.31 frames/s
GeForce 940MX
1.85 frames/s

Video composition Data courtesy CompuBench

GeForce GTX 680MX
35.43 frames/s
GeForce 940MX
28.08 frames/s

Hitman: Absolution

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