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Differences What are the advantages of each

View of Radeon HD 4710

Reasons to consider the
ATi Radeon HD 4710

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Higher clock speed 750 MHz vs 625 MHz 20% higher clock speed
Front view of GeForce GT 640M

Reasons to consider the
Nvidia GeForce GT 640M

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More memory 2,048 MB vs 512 MB 4x more memory
More render output processors 16 vs 8 Twice as many render output processors
Slightly higher memory clock speed 900 MHz vs 800 MHz Around 15% higher memory clock speed
Lower TDP 32W vs 59W More than 45% lower TDP

Features Key features of the Radeon HD 4710  vs GeForce GT 640M 

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

Radeon HD 4710
25.6 GB/s
GeForce GT 640M
28.8 GB/s

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

Radeon HD 4710
6 GPixel/s
GeForce GT 640M
5 GPixel/s

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

Radeon HD 4710
24 GTexel/s
GeForce GT 640M
20 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 4710
480 GFLOPS
GeForce GT 640M
480 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

Radeon HD 4710  vs
GeForce GT 640M 
GPU brand ATI Nvidia
GPU name RV730 GK107
Market Desktop Laptop
Clock speed 750 MHz 625 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 320 384
Texture mapping units 32 32
Render output processors 8 16
Pixel rate 6 GPixel/s 5 GPixel/s
Texture rate 24 GTexel/s 20 GTexel/s
Floating-point performance 480 GFLOPS 480 GFLOPS

memory

Radeon HD 4710  vs
GeForce GT 640M 
Memory clock speed 800 MHz 900 MHz
Effective memory clock speed 1,600 MHz 1,800 MHz
Memory bus 128 bit 128 bit
Memory 512 MB 2,048 MB
Memory type GDDR3 DDR3
Memory bandwidth 25.6 GB/s 28.8 GB/s

noise and power

TDP 59W 32W

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