GPUBoss Review Our evaluation of 660 vs 820M among all 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

Noise and Power

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

7.1

Overall Score

Winner
Nvidia GeForce GTX 660 

GPUBoss recommends the Nvidia GeForce GTX 660  based on its benchmarks.

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VS

Differences What are the advantages of each

Front view of GeForce GTX 660

Reasons to consider the
Nvidia GeForce GTX 660

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Much better 3DMark06 score 18,060 vs 1,266.5 More than 14.2x better 3DMark06 score
Significantly better 3DMark vantage graphics score 25,130 vs 4,254 Around 6x better 3DMark vantage graphics score
Better PassMark score 4,118 vs 593 Around 7x better PassMark score
Much higher memory bandwidth 179.2 GB/s vs 28.83 GB/s Around 6.2x higher memory bandwidth
Significantly higher effective memory clock speed 5,600 MHz vs 1,802 MHz More than 3x higher effective memory clock speed
Better floating-point performance 1,896.2 GFLOPS vs 622.1 GFLOPS More than 3x better floating-point performance
Significantly better fire strike factor score 44.33 vs 7.67 More than 5.8x better fire strike factor score
Higher texture rate 79 GTexel/s vs 25.92 GTexel/s More than 3x higher texture rate
More texture mapping units 96 vs 32 Three times as many texture mapping units
Higher pixel rate 19.75 GPixel/s vs 6.48 GPixel/s More than 3x higher pixel rate
More shading units 1,152 vs 384 Three times as many shading units
Significantly higher memory clock speed 1,400 MHz vs 901 MHz More than 55% higher memory clock speed
More render output processors 32 vs 16 Twice as many render output processors
Better manhattan score 3,718.88 vs 3,431.62 Around 10% better manhattan score
Higher battlefield 3 framerate 50 vs 42.5 Around 20% higher battlefield 3 framerate
Front view of GeForce 820M

Reasons to consider the
Nvidia GeForce 820M

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Lower TDP 45W vs 130W 2.9x lower TDP

Benchmarks Real world tests of GeForce GTX 660 vs 820M

Bitcoin mining Data courtesy CompuBench

GeForce GTX 660
66.49 mHash/s
GeForce 820M
23.28 mHash/s

Face detection Data courtesy CompuBench

GeForce GTX 660
30.72 mPixels/s
GeForce 820M
7.54 mPixels/s

T-Rex (GFXBench 3.0) Data courtesy CompuBench

GeForce GTX 660
3,359.77
GeForce 820M
3,353.8

Manhattan (GFXBench 3.0) Data courtesy CompuBench

GeForce GTX 660
3,718.88
GeForce 820M
3,431.62

Fire Strike Factor Data courtesy FutureMark

Sky Diver Factor Data courtesy FutureMark

Bioshock Infinite

Battlefield 3

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