GPUBoss Review Our evaluation of 850M 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

6.5

Overall Score

Winner
Nvidia GeForce GTX 850M 

GPUBoss recommends the Nvidia GeForce GTX 850M  based on its gaming, benchmarks and compute performance.

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VS

Differences What are the advantages of each

Front view of GeForce GTX 850M

Reasons to consider the
Nvidia GeForce GTX 850M

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Much higher dead space 3 framerate 57.85 fps vs 24.5 fps More than 2.2x higher dead space 3 framerate
Better 3DMark 11 graphics score 16,135 vs 10,332 More than 55% better 3DMark 11 graphics score
Better 3DMark vantage graphics score 14,358.5 vs 6,627 Around 2.2x better 3DMark vantage graphics score
Much higher diablo III framerate 61 fps vs 17.7 fps Around 3.5x higher diablo III framerate
Better 3DMark06 score 4,385.5 vs 2,338 Around 90% better 3DMark06 score
More memory 2,048 MB vs 1,024 MB 2x more memory
Slightly better PassMark score 1,499 vs 879 More than 70% better PassMark score
Better manhattan score 3,715.98 vs 2,571 Around 45% better manhattan score
Higher texture rate 36.1 GTexel/s vs 16.46 GTexel/s Around 2.2x higher texture rate
More texture mapping units 40 vs 16 24 more texture mapping units
Slightly higher pixel rate 14.43 GPixel/s vs 8.23 GPixel/s More than 75% higher pixel rate
More render output processors 16 vs 8 Twice as many render output processors
Wider memory bus 128 bit vs 64 bit 2x wider memory bus
More shading units 640 vs 384 256 more shading units
Better fire strike factor score 26.99 vs 12.59 Around 2.2x better fire strike factor score
Better bitcoin mining score 153.1 mHash/s vs 92.89 mHash/s Around 65% better bitcoin mining score
Higher BioShock infinite framerate 28.4 fps vs 13.5 fps More than 2x higher BioShock infinite framerate
Higher crysis 3 framerate 14 fps vs 6.3 fps Around 2.2x higher crysis 3 framerate
Higher thief framerate 18.4 vs 9.1 More than 2x higher thief framerate
Slightly better PassMark direct compute score 1,215 vs 726 More than 65% better PassMark direct compute score
Front view of GeForce 840M

Reasons to consider the
Nvidia GeForce 840M

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Higher clock speed 1,029 MHz vs 902 MHz Around 15% higher clock speed
Higher turbo clock speed 1,124 MHz vs 936 MHz More than 20% higher turbo clock speed

Benchmarks Real world tests of GeForce GTX 850M vs 840M

Bitcoin mining Data courtesy CompuBench

GeForce GTX 850M
153.1 mHash/s
GeForce 840M
92.89 mHash/s

Face detection Data courtesy CompuBench

GeForce GTX 850M
38.06 mPixels/s
GeForce 840M
22.54 mPixels/s

T-Rex (GFXBench 3.0) Data courtesy CompuBench

Manhattan (GFXBench 3.0) Data courtesy CompuBench

Fire Strike Factor Data courtesy FutureMark

Sky Diver Factor Data courtesy FutureMark

Battlefield 4

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Comments

Showing 3 comments.
Gtx 850m core clock in ddr3 is 936-boost 1084 MHz
sometimes it's 1gb sometimes 4gb
Geforce 840m has 2GB DDR3 RAM and it's Ram is not 1GB !!!
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