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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 higher clock speed 1,020 MHz vs 608 MHz Around 70% higher clock speed
Higher effective memory clock speed 5,012 MHz vs 3,348 MHz Around 50% higher effective memory clock speed
Higher memory clock speed 1,253 MHz vs 837 MHz Around 50% higher memory clock speed
Significantly lower TDP 75W vs 215W 2.9x lower TDP
Front view of GeForce GTX 470 PhysX

Reasons to consider the
Nvidia GeForce GTX 470 PhysX

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Higher memory bandwidth 133.9 GB/s vs 80.2 GB/s More than 65% higher memory bandwidth
Higher pixel rate 34.02 GPixel/s vs 16.32 GPixel/s More than 2x higher pixel rate
More render output processors 40 vs 16 24 more render output processors
Slightly higher texture rate 68.04 GTexel/s vs 40.8 GTexel/s More than 65% higher texture rate
Wider memory bus 320 bit vs 128 bit 2.5x wider memory bus

Features Key features of the GeForce GTX 860M  vs 470 PhysX 

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 860M
16.32 GPixel/s
GeForce GTX 470 PhysX
34.02 GPixel/s

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

GeForce GTX 860M
40.8 GTexel/s
GeForce GTX 470 PhysX
68.04 GTexel/s

floating point performance How fast the gpu can crunch numbers

GeForce GTX 860M
1,305.6 GFLOPS
GeForce GTX 470 PhysX
1,089 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

Specifications Full list of technical specs

gpu

GeForce GTX 860M  vs
470 PhysX 
GPU brand Nvidia Nvidia
GPU name GM107 GF100
Market Laptop Desktop
Clock speed 1,020 MHz 608 MHz
Is dual GPU No No
Reference card Nvidia GeForce GTX 860M 797 MHz 2 GB None

raw performance

Shading units 640 448
Texture mapping units 40 56
Render output processors 16 40
Pixel rate 16.32 GPixel/s 34.02 GPixel/s
Texture rate 40.8 GTexel/s 68.04 GTexel/s
Floating-point performance 1,305.6 GFLOPS 1,089 GFLOPS

memory

GeForce GTX 860M  vs
470 PhysX 
Memory clock speed 1,253 MHz 837 MHz
Effective memory clock speed 5,012 MHz 3,348 MHz
Memory bus 128 bit 320 bit
Memory 2,048 MB 1,280 MB
Memory type GDDR5 GDDR5
Memory bandwidth 80.2 GB/s 133.9 GB/s

noise and power

TDP 75W 215W

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