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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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GPUBoss is not aware of any important advantages of the AMD Radeon HD 8570A vs the ATi Radeon HD 5770.

Front view of Radeon HD 5770

Reasons to consider the
ATi Radeon HD 5770

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Significantly higher effective memory clock speed 4,800 MHz vs 2,000 MHz Around 2.5x higher effective memory clock speed
Higher clock speed 850 MHz vs 750 MHz Around 15% higher clock speed
Higher memory bandwidth 76.8 GB/s vs 16 GB/s More than 4.8x higher memory bandwidth
Slightly better floating-point performance 1,360 GFLOPS vs 528 GFLOPS More than 2.5x better floating-point performance
More shading units 800 vs 320 480 more shading units
More render output processors 16 vs 8 Twice as many render output processors
More texture mapping units 40 vs 20 Twice as many texture mapping units
Higher memory clock speed 1,200 MHz vs 1,000 MHz 20% higher memory clock speed
Slightly more compute units 10 vs 5 Twice as many compute units

Features Key features of the Radeon HD 8570A  vs 5770 

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

Radeon HD 8570A
16 GB/s
Radeon HD 5770
76.8 GB/s

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

Radeon HD 8570A
6.6 GPixel/s
Radeon HD 5770
13.6 GPixel/s

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

Radeon HD 8570A
16.5 GTexel/s
Radeon HD 5770
34 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 8570A
528 GFLOPS
Radeon HD 5770
1,360 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

gpu

Radeon HD 8570A  vs
5770 
GPU brand AMD ATI
GPU name Sun Juniper
Market Laptop Desktop
Clock speed 750 MHz 850 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 320 800
Texture mapping units 20 40
Render output processors 8 16
Compute units 5 10
Pixel rate 6.6 GPixel/s 13.6 GPixel/s
Texture rate 16.5 GTexel/s 34 GTexel/s
Floating-point performance 528 GFLOPS 1,360 GFLOPS

memory

Radeon HD 8570A  vs
5770 
Memory clock speed 1,000 MHz 1,200 MHz
Effective memory clock speed 2,000 MHz 4,800 MHz
Memory bus 64 bit 128 bit
Memory 1,024 MB 1,024 MB
Memory type DDR3 GDDR5
Memory bandwidth 16 GB/s 76.8 GB/s

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