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Differences What are the advantages of each

Front view of GeForce GTX 860M

Reasons to consider the
Nvidia GeForce GTX 860M

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Significantly better PassMark score 1,719 vs 661 More than 2.5x better PassMark score
Significantly higher effective memory clock speed 5,012 MHz vs 2,000 MHz More than 2.5x higher effective memory clock speed
Higher memory bandwidth 80.2 GB/s vs 16 GB/s More than 5x higher memory bandwidth
Higher clock speed 1,020 MHz vs 938 MHz Around 10% higher clock speed
Better floating-point performance 1,305.6 GFLOPS vs 360.2 GFLOPS More than 3.5x better floating-point performance
Higher pixel rate 16.32 GPixel/s vs 3.75 GPixel/s More than 4.2x higher pixel rate
Higher texture rate 40.8 GTexel/s vs 15.01 GTexel/s Around 2.8x higher texture rate
More shading units 640 vs 96 544 more shading units
More texture mapping units 40 vs 16 24 more texture mapping units
Higher memory clock speed 1,253 MHz vs 1,000 MHz More than 25% higher memory clock speed
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
Front view of GeForce GT 720A

Reasons to consider the
Nvidia GeForce GT 720A

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Lower TDP 33W vs 75W 2.3x lower TDP

Benchmarks Real world tests of GeForce GTX 860M vs GT 720A

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

Features Key features of the GeForce GTX 860M  vs GT 720A 

memory bandwidth Rate at which data can be read from or stored in onboard memory

GeForce GTX 860M
80.2 GB/s
GeForce GT 720A
16 GB/s

pixel rate Number of pixels a graphics card can render to the screen every second

GeForce GTX 860M
16.32 GPixel/s
GeForce GT 720A
3.75 GPixel/s

texture rate Speed at which a graphics card can perform texture mapping

GeForce GTX 860M
40.8 GTexel/s
GeForce GT 720A
15.01 GTexel/s

floating point performance How fast the gpu can crunch numbers

GeForce GTX 860M
1,305.6 GFLOPS
GeForce GT 720A
360.2 GFLOPS

shading units Subcomponents of the gpu, these run in parallel to enable fast pixel shading

texture mapping units Built into each gpu, these resize and rotate bitmaps for texturing scenes

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