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Differences What are the advantages of each

Front view of Radeon HD 6770M Mac

Reasons to consider the
AMD Radeon HD 6770M Mac

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Higher clock speed 725 MHz vs 550 MHz More than 30% higher clock speed
Higher memory clock speed 900 MHz vs 800 MHz Around 15% higher memory clock speed
Front view of Mobility Radeon HD 5750

Reasons to consider the
ATi Mobility Radeon HD 5750

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Slightly more memory 1,024 MB vs 512 MB 2x more memory
Slightly lower TDP 25W vs 35W Around 30% lower TDP

Features Key features of the Radeon HD 6770M Mac  vs Mobility Radeon HD 5750 

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

Radeon HD 6770M Mac
5.8 GPixel/s

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

Radeon HD 6770M Mac
17.4 GTexel/s

floating point performance How fast the gpu can crunch numbers

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 6770M Mac  vs
Mobility Radeon HD 5750 
GPU brand AMD ATI
GPU name Whistler Madison
Market Laptop Laptop
Clock speed 725 MHz 550 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 480 400
Texture mapping units 24 20
Render output processors 8 8
Compute units 6 5
Pixel rate 5.8 GPixel/s 4.4 GPixel/s
Texture rate 17.4 GTexel/s 11 GTexel/s
Floating-point performance 696 GFLOPS 440 GFLOPS

memory

Radeon HD 6770M Mac  vs
Mobility Radeon HD 5750 
Memory clock speed 900 MHz 800 MHz
Effective memory clock speed 3,600 MHz 3,200 MHz
Memory bus 128 bit 128 bit
Memory 512 MB 1,024 MB
Memory type GDDR5 GDDR5
Memory bandwidth 57.6 GB/s 51.2 GB/s

noise and power

TDP 35W 25W

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