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Differences What are the advantages of each

Front view of GeForce GTX 780M

Reasons to consider the
Nvidia GeForce GTX 780M

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Much better 3DMark06 score 23,381.5 vs 6,071 More than 3.8x better 3DMark06 score
More memory 4,096 MB vs 2,048 MB 2x more memory
Higher memory bandwidth 160 GB/s vs 96.2 GB/s More than 65% higher memory bandwidth
Better floating-point performance 2,448 GFLOPS vs 1,356 GFLOPS More than 80% better floating-point performance
Higher texture rate 102 GTexel/s vs 56.5 GTexel/s More than 80% higher texture rate
Higher clock speed 771 MHz vs 706 MHz Around 10% higher clock speed
Higher effective memory clock speed 5,000 MHz vs 4,008 MHz Around 25% higher effective memory clock speed
More texture mapping units 128 vs 80 48 more texture mapping units
Higher pixel rate 25.5 GPixel/s vs 14.1 GPixel/s More than 80% higher pixel rate
More shading units 1,536 vs 960 576 more shading units
More render output processors 32 vs 24 8 more render output processors
Wider memory bus 256 bit vs 192 bit Around 35% wider memory bus
Higher memory clock speed 1,250 MHz vs 1,002 MHz Around 25% higher memory clock speed
Better PassMark direct compute score 2,247 vs 1,910 Around 20% better PassMark direct compute score
Front view of GeForce GTX 775M

Reasons to consider the
Nvidia GeForce GTX 775M

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Lower TDP 75W vs 100W 25% lower TDP

Benchmarks Real world tests of GeForce GTX 780M vs 775M

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

3DMark06 Industry standard benchmark that tests DirectX 9 GPU performance

PassMark Direct Compute Measures performance of general-purpose computing using Microsoft DirectCompute

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