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Differences What are the advantages of each

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 64 GB/s More than 2x higher memory bandwidth
Higher pixel rate 34.02 GPixel/s vs 7.53 GPixel/s More than 4.5x higher pixel rate
More render output processors 40 vs 16 24 more render output processors
Higher texture rate 68.04 GTexel/s vs 30.11 GTexel/s More than 2.2x higher texture rate
More texture mapping units 56 vs 32 24 more texture mapping units
Wider memory bus 320 bit vs 128 bit 2.5x wider memory bus
Front view of GeForce GT 750M

Reasons to consider the
Nvidia GeForce GT 750M

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Significantly higher clock speed 941 MHz vs 608 MHz Around 55% higher clock speed
Higher effective memory clock speed 4,000 MHz vs 3,348 MHz Around 20% higher effective memory clock speed
Higher memory clock speed 1,000 MHz vs 837 MHz Around 20% higher memory clock speed
Much lower TDP 50W vs 215W 4.3x lower TDP

Features Key features of the GeForce GTX 470 PhysX  vs GT 750M 

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 470 PhysX
34.02 GPixel/s
GeForce GT 750M
7.53 GPixel/s

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

GeForce GTX 470 PhysX
68.04 GTexel/s
GeForce GT 750M
30.11 GTexel/s

floating point performance How fast the gpu can crunch numbers

GeForce GTX 470 PhysX
1,089 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

Specifications Full list of technical specs

gpu

GeForce GTX 470 PhysX  vs
GT 750M 
GPU brand Nvidia Nvidia
GPU name GF100 GK107
Market Desktop Laptop
Clock speed 608 MHz 941 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 448 384
Texture mapping units 56 32
Render output processors 40 16
Pixel rate 34.02 GPixel/s 7.53 GPixel/s
Texture rate 68.04 GTexel/s 30.11 GTexel/s
Floating-point performance 1,089 GFLOPS 722.7 GFLOPS

memory

GeForce GTX 470 PhysX  vs
GT 750M 
Memory clock speed 837 MHz 1,000 MHz
Effective memory clock speed 3,348 MHz 4,000 MHz
Memory bus 320 bit 128 bit
Memory 1,280 MB 2,048 MB
Memory type GDDR5 GDDR5
Memory bandwidth 133.9 GB/s 64 GB/s

noise and power

TDP 215W 50W

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