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Differences What are the advantages of each

Front view of Radeon HD 5570

Reasons to consider the
ATi Radeon HD 5570

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Slightly higher clock speed 650 MHz vs 580 MHz More than 10% higher clock speed
Lower TDP 39W vs 70W Around 45% lower TDP
Front view of Mobility Radeon HD 3850 X2

Reasons to consider the
ATi Mobility Radeon HD 3850 X2

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Is dual GPU Yes vs No About half of graphics cards are dual GPU
Higher memory bandwidth 96 GB/s vs 25.6 GB/s 3.8x higher memory bandwidth
More render output processors 32 vs 8 24 more render output processors
Higher pixel rate 18.56 GPixel/s vs 5.2 GPixel/s More than 3.5x higher pixel rate
Wider memory bus 512 bit vs 128 bit 4x wider memory bus

Features Key features of the Radeon HD 5570  vs Mobility Radeon HD 3850 X2 

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 5570
5.2 GPixel/s

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

Radeon HD 5570
13 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 5570

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


Radeon HD 5570  vs
Mobility Radeon HD 3850 X2 
GPU name Redwood M88
Market Desktop Laptop
Clock speed 650 MHz 580 MHz
Is dual GPU No Yes
Reference card None None

raw performance

Shading units 400 640
Texture mapping units 20 32
Render output processors 8 32
Compute units 5 8
Pixel rate 5.2 GPixel/s 18.56 GPixel/s
Texture rate 13 GTexel/s 18.56 GTexel/s
Floating-point performance 520 GFLOPS 742.4 GFLOPS


Radeon HD 5570  vs
Mobility Radeon HD 3850 X2 
Memory clock speed 800 MHz 750 MHz
Effective memory clock speed 1,600 MHz 1,500 MHz
Memory bus 128 bit 512 bit
Memory 1,024 MB 1,024 MB
Memory type GDDR3 GDDR3
Memory bandwidth 25.6 GB/s 96 GB/s

noise and power

TDP 39W 70W


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