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Differences What are the advantages of each

Front view of Radeon HD 7570M

Reasons to consider the
AMD Radeon HD 7570M

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Higher effective memory clock speed 3,200 MHz vs 1,500 MHz Around 2.2x higher effective memory clock speed
Lower TDP 13W vs 70W 5.4x 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 clock speed 580 MHz vs 450 MHz Around 30% higher clock speed
Much wider memory bus 512 bit vs 64 bit 8x wider memory bus
Higher memory bandwidth 96 GB/s vs 25.6 GB/s 3.8x higher memory bandwidth
Higher pixel rate 18.56 GPixel/s vs 7.2 GPixel/s More than 2.5x higher pixel rate
More render output processors 32 vs 16 Twice as many render output processors

Features Key features of the Radeon HD 7570M  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 7570M
7.2 GPixel/s

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

Radeon HD 7570M
10.8 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 7570M  vs
Mobility Radeon HD 3850 X2 
GPU brand AMD ATI
GPU name Thames M88
Market Laptop Laptop
Clock speed 450 MHz 580 MHz
Is dual GPU No Yes
Reference card AMD Radeon HD 7570M 500 MHz 1 GB None

raw performance

Shading units 480 640
Texture mapping units 24 32
Render output processors 16 32
Compute units 6 8
Pixel rate 7.2 GPixel/s 18.56 GPixel/s
Texture rate 10.8 GTexel/s 18.56 GTexel/s
Floating-point performance 432 GFLOPS 742.4 GFLOPS

memory

Radeon HD 7570M  vs
Mobility Radeon HD 3850 X2 
Memory clock speed 800 MHz 750 MHz
Effective memory clock speed 3,200 MHz 1,500 MHz
Memory bus 64 bit 512 bit
Memory 1,024 MB 1,024 MB
Memory type GDDR5 GDDR3
Memory bandwidth 25.6 GB/s 96 GB/s

noise and power

TDP 13W 70W

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