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Differences What are the advantages of each

Front view of Radeon HD 8570A

Reasons to consider the
AMD Radeon HD 8570A

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Higher memory clock speed 1,000 MHz vs 900 MHz More than 10% higher memory clock speed
Front view of GeForce GTX 850A

Reasons to consider the
Nvidia GeForce GTX 850A

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Higher clock speed 902 MHz vs 750 MHz More than 20% higher clock speed
More memory 2,048 MB vs 1,024 MB 2x more memory
Better floating-point performance 1,154.6 GFLOPS vs 528 GFLOPS Around 2.2x better floating-point performance
Higher texture rate 36.1 GTexel/s vs 16.5 GTexel/s Around 2.2x higher texture rate
Higher pixel rate 14.43 GPixel/s vs 6.6 GPixel/s Around 2.2x higher pixel rate
Higher turbo clock speed 936 MHz vs 825 MHz Around 15% higher turbo clock speed
More shading units 640 vs 320 Twice as many shading units
More texture mapping units 40 vs 20 Twice as many texture mapping units
More render output processors 16 vs 8 Twice as many render output processors
Wider memory bus 128 bit vs 64 bit 2x wider memory bus

Features Key features of the Radeon HD 8570A  vs GeForce GTX 850A 

memory bandwidth Rate at which data can be read from or stored in onboard memory

Radeon HD 8570A
16 GB/s
GeForce GTX 850A
28.8 GB/s

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

Radeon HD 8570A
6.6 GPixel/s
GeForce GTX 850A
14.43 GPixel/s

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

Radeon HD 8570A
16.5 GTexel/s
GeForce GTX 850A
36.1 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 8570A
GeForce GTX 850A
1,154.6 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

Specifications Full list of technical specs


Radeon HD 8570A  vs
GeForce GTX 850A 
GPU brand AMD Nvidia
GPU name Sun GM107
Market Laptop Laptop
Clock speed 750 MHz 902 MHz
Turbo clock speed 825 MHz 936 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 320 640
Texture mapping units 20 40
Render output processors 8 16
Pixel rate 6.6 GPixel/s 14.43 GPixel/s
Texture rate 16.5 GTexel/s 36.1 GTexel/s
Floating-point performance 528 GFLOPS 1,154.6 GFLOPS


Radeon HD 8570A  vs
GeForce GTX 850A 
Memory clock speed 1,000 MHz 900 MHz
Effective memory clock speed 2,000 MHz 1,800 MHz
Memory bus 64 bit 128 bit
Memory 1,024 MB 2,048 MB
Memory type DDR3 DDR3
Memory bandwidth 16 GB/s 28.8 GB/s


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