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Differences What are the advantages of each

Front view of Radeon R7 Graphics

Reasons to consider the
AMD Radeon R7 Graphics

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Lower TDP 15W vs 100W 6.7x lower TDP
Front view of Radeon HD 7660D IGP

Reasons to consider the
IGP Radeon HD 7660D IGP

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Higher clock speed 800 MHz vs 720 MHz More than 10% higher clock speed

Features Key features of the Radeon R7 Graphics  vs HD 7660D IGP 

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

Radeon R7 Graphics
7.84 GPixel/s
Radeon HD 7660D IGP
6.4 GPixel/s

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

Radeon R7 Graphics
31.36 GTexel/s
Radeon HD 7660D IGP
19.2 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon R7 Graphics
1,003.5 GFLOPS
Radeon HD 7660D IGP
614.4 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

compute units Discrete cores within the GPU

Specifications Full list of technical specs

gpu

Radeon R7 Graphics  vs
HD 7660D IGP 
GPU brand AMD AMD
GPU name Spectre Devastator
Clock speed 720 MHz 800 MHz
Is dual GPU No No
Reference card None None

noise and power

TDP 15W 100W

raw performance

Radeon R7 Graphics  vs
HD 7660D IGP 
Shading units 512 384
Texture mapping units 32 24
Render output processors 8 8
Compute units 8 6
Pixel rate 7.84 GPixel/s 6.4 GPixel/s
Texture rate 31.36 GTexel/s 19.2 GTexel/s
Floating-point performance 1,003.5 GFLOPS 614.4 GFLOPS

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