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Differences What are the advantages of each

Front view of Radeon HD 7310 IGP

Reasons to consider the
AMD Radeon HD 7310 IGP

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Lower TDP 18W vs 106W 5.9x lower TDP
Front view of Radeon HD 3870 Mac

Reasons to consider the
ATi Radeon HD 3870 Mac

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Higher clock speed 777 MHz vs 500 MHz More than 55% higher clock speed
Higher pixel rate 12.43 GPixel/s vs 2 GPixel/s Around 6.2x higher pixel rate
More render output processors 16 vs 4 12 more render output processors

Features Key features of the Radeon HD 7310 IGP  vs 3870 Mac 

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

Radeon HD 7310 IGP
2 GPixel/s
Radeon HD 3870 Mac
12.43 GPixel/s

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

Radeon HD 7310 IGP
4 GTexel/s
Radeon HD 3870 Mac
12.43 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 7310 IGP
80 GFLOPS
Radeon HD 3870 Mac
497.3 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 HD 7310 IGP  vs
3870 Mac 
GPU brand AMD ATI
GPU name Loveland RV670
Clock speed 500 MHz 777 MHz
Is dual GPU No No
Reference card None None

noise and power

TDP 18W 106W

raw performance

Radeon HD 7310 IGP  vs
3870 Mac 
Shading units 80 320
Texture mapping units 8 16
Render output processors 4 16
Compute units 2 4
Pixel rate 2 GPixel/s 12.43 GPixel/s
Texture rate 4 GTexel/s 12.43 GTexel/s
Floating-point performance 80 GFLOPS 497.3 GFLOPS

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