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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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Better PassMark score 1,499 vs 802 More than 85% better PassMark score
Higher memory clock speed 1,001 MHz vs 900 MHz More than 10% higher memory clock speed
Front view of GeForce GTX 850A

Reasons to consider the
Nvidia GeForce GTX 850A

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GPUBoss is not aware of any important advantages of the 850A vs the 850M.

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

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

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

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

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

GeForce GTX 850M
14.43 GPixel/s
GeForce GTX 850A
14.43 GPixel/s

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

GeForce GTX 850M
36.1 GTexel/s
GeForce GTX 850A
36.1 GTexel/s

floating point performance How fast the gpu can crunch numbers

GeForce GTX 850M
1,154.6 GFLOPS
GeForce GTX 850A
1,154.6 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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