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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 better T-Rex score 2,606.42 vs 1,191.52 Around 2.2x better T-Rex score
Significantly higher clock speed 902 MHz vs 500 MHz More than 80% higher clock speed
Significantly better PassMark score 1,499 vs 280 More than 5.2x better PassMark score
Better floating-point performance 1,154.6 GFLOPS vs 80 GFLOPS Around 14.5x better floating-point performance
More memory 2,048 MB vs 1,024 MB 2x more memory
Higher effective memory clock speed 2,002 MHz vs 1,000 MHz More than 2x higher effective memory clock speed
Higher texture rate 36.1 GTexel/s vs 8 GTexel/s More than 4.5x higher texture rate
Significantly higher memory clock speed 1,001 MHz vs 500 MHz More than 2x higher memory clock speed
Higher pixel rate 14.43 GPixel/s vs 4 GPixel/s More than 3.5x higher pixel rate
More shading units 640 vs 32 608 more shading units
More texture mapping units 40 vs 16 24 more texture mapping units
More render output processors 16 vs 8 Twice as many render output processors
Front view of GeForce GT 120M

Reasons to consider the
Nvidia GeForce GT 120M

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Lower TDP 14W vs 45W 3.2x lower TDP

Benchmarks Real world tests of GeForce GTX 850M vs GT 120M

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

T-Rex (GFXBench 3.0) Data courtesy CompuBench

GeForce GTX 850M
GeForce GT 120M

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