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Differences What are the advantages of each

Front view of GeForce GTX 850A

Reasons to consider the
Nvidia GeForce GTX 850A

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Slightly higher pixel rate 14.43 GPixel/s vs 7.53 GPixel/s More than 90% higher pixel rate
More shading units 640 vs 384 256 more shading units
Front view of GeForce GT 750M

Reasons to consider the
Nvidia GeForce GT 750M

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Better PassMark score 1,288 vs 802 More than 60% better PassMark score
Higher effective memory clock speed 4,000 MHz vs 1,800 MHz Around 2.2x higher effective memory clock speed
Higher memory bandwidth 64 GB/s vs 28.8 GB/s Around 2.2x higher memory bandwidth
Higher memory clock speed 1,000 MHz vs 900 MHz More than 10% higher memory clock speed

Benchmarks Real world tests of GeForce GTX 850A vs GT 750M

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

Features Key features of the GeForce GTX 850A  vs GT 750M 

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

GeForce GTX 850A
28.8 GB/s
GeForce GT 750M
64 GB/s

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

GeForce GTX 850A
14.43 GPixel/s
GeForce GT 750M
7.53 GPixel/s

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

GeForce GTX 850A
36.1 GTexel/s
GeForce GT 750M
30.11 GTexel/s

floating point performance How fast the gpu can crunch numbers

GeForce GTX 850A
1,154.6 GFLOPS
GeForce GT 750M
722.7 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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