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Differences What are the advantages of each

Front view of GeForce GT 730A

Reasons to consider the
Nvidia GeForce GT 730A

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Slightly higher memory bandwidth 28.8 GB/s vs 14.4 GB/s 2x higher memory bandwidth
Slightly wider memory bus 128 bit vs 64 bit 2x wider memory bus
Front view of GeForce GT 630 PCIe x8

Reasons to consider the
Nvidia GeForce GT 630 PCIe x8

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Higher clock speed 902 MHz vs 719 MHz More than 25% higher clock speed

Features Key features of the GeForce GT 730A  vs 630 PCIe x8 

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 GT 730A
5.75 GPixel/s
GeForce GT 630 PCIe x8
7.22 GPixel/s

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

GeForce GT 730A
14.38 GTexel/s
GeForce GT 630 PCIe x8
14.43 GTexel/s

floating point performance How fast the gpu can crunch numbers

GeForce GT 730A
552.2 GFLOPS
GeForce GT 630 PCIe x8
692.7 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 GT 730A  vs
630 PCIe x8 
GPU brand Nvidia Nvidia
GPU name GK208 GK208
Market Laptop Desktop
Clock speed 719 MHz 902 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 384 384
Texture mapping units 20 16
Render output processors 8 8
Pixel rate 5.75 GPixel/s 7.22 GPixel/s
Texture rate 14.38 GTexel/s 14.43 GTexel/s
Floating-point performance 552.2 GFLOPS 692.7 GFLOPS

memory

GeForce GT 730A  vs
630 PCIe x8 
Memory clock speed 900 MHz 900 MHz
Effective memory clock speed 1,800 MHz 1,800 MHz
Memory bus 128 bit 64 bit
Memory 2,048 MB 2,048 MB
Memory type DDR3 DDR3
Memory bandwidth 28.8 GB/s 14.4 GB/s

noise and power

TDP 33W 25W

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