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Differences What are the advantages of each

Front view of GeForce GTX 775M

Reasons to consider the
Nvidia GeForce GTX 775M

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Lower TDP 75W vs 122W Around 40% lower TDP
Front view of GeForce GTX 680MX

Reasons to consider the
Nvidia GeForce GTX 680MX

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Higher memory bandwidth 160 GB/s vs 96.2 GB/s More than 65% higher memory bandwidth
Much higher memory clock speed 2,500 MHz vs 1,002 MHz Around 2.5x higher memory clock speed
Better floating-point performance 2,208.8 GFLOPS vs 1,356 GFLOPS Around 65% better floating-point performance
Higher effective memory clock speed 5,000 MHz vs 4,008 MHz Around 25% higher effective memory clock speed
Higher texture rate 92 GTexel/s vs 56.5 GTexel/s Around 65% higher texture rate
More texture mapping units 128 vs 80 48 more texture mapping units
Slightly better 3DMark06 score 6,736 vs 6,071 More than 10% better 3DMark06 score
More shading units 1,536 vs 960 576 more shading units
Higher pixel rate 23.01 GPixel/s vs 14.1 GPixel/s Around 65% higher pixel rate
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

Benchmarks Real world tests of GeForce GTX 775M vs 680MX

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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