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Differences What are the advantages of each

Front view of GeForce GT 730M

Reasons to consider the
Nvidia GeForce GT 730M

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Higher clock speed 719 MHz vs 500 MHz Around 45% higher clock speed
More memory 2,048 MB vs 512 MB 4x more memory
Slightly better floating-point performance 552.2 GFLOPS vs 105.6 GFLOPS Around 5.2x better floating-point performance
More shading units 384 vs 48 336 more shading units
Higher memory clock speed 900 MHz vs 790 MHz Around 15% higher memory clock speed
Front view of GeForce GT 330M Mac

Reasons to consider the
Nvidia GeForce GT 330M Mac

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Slightly higher memory bandwidth 25.28 GB/s vs 14.4 GB/s More than 75% higher memory bandwidth
Slightly lower TDP 23W vs 33W More than 30% lower TDP

Features Key features of the GeForce GT 730M  vs 330M Mac 

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

GeForce GT 730M
14.4 GB/s
GeForce GT 330M Mac
25.28 GB/s

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

GeForce GT 730M
5.75 GPixel/s
GeForce GT 330M Mac
4 GPixel/s

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

GeForce GT 730M
11.5 GTexel/s
GeForce GT 330M Mac
8 GTexel/s

floating point performance How fast the gpu can crunch numbers

GeForce GT 730M
552.2 GFLOPS
GeForce GT 330M Mac
105.6 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

Specifications Full list of technical specs

gpu

GeForce GT 730M  vs
330M Mac 
GPU brand Nvidia Nvidia
GPU name GK208 GT216
Market Laptop Laptop
Clock speed 719 MHz 500 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 384 48
Texture mapping units 16 16
Render output processors 8 8
Pixel rate 5.75 GPixel/s 4 GPixel/s
Texture rate 11.5 GTexel/s 8 GTexel/s
Floating-point performance 552.2 GFLOPS 105.6 GFLOPS

memory

GeForce GT 730M  vs
330M Mac 
Memory clock speed 900 MHz 790 MHz
Effective memory clock speed 1,800 MHz 1,580 MHz
Memory bus 128 bit 128 bit
Memory 2,048 MB 512 MB
Memory type DDR3 GDDR3
Memory bandwidth 14.4 GB/s 25.28 GB/s

noise and power

TDP 33W 23W

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