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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 more memory 1,024 MB vs 256 MB 4x more memory
Lower TDP 39W vs 75W Around 50% lower TDP
Front view of Radeon HD 3690

Reasons to consider the
ATi Radeon HD 3690

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More render output processors 16 vs 8 Twice as many render output processors

Features Key features of the Radeon HD 5570  vs 3690 

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

Radeon HD 5570
25.6 GB/s
Radeon HD 3690
26.56 GB/s

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

Radeon HD 5570
5.2 GPixel/s
Radeon HD 3690
10.72 GPixel/s

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

Radeon HD 5570
13 GTexel/s
Radeon HD 3690
10.72 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 5570
Radeon HD 3690
428.8 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 5570  vs
GPU name Redwood RV670
Market Desktop Desktop
Clock speed 650 MHz 670 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 400 320
Texture mapping units 20 16
Render output processors 8 16
Compute units 5 4
Pixel rate 5.2 GPixel/s 10.72 GPixel/s
Texture rate 13 GTexel/s 10.72 GTexel/s
Floating-point performance 520 GFLOPS 428.8 GFLOPS


Radeon HD 5570  vs
Memory clock speed 800 MHz 830 MHz
Effective memory clock speed 1,600 MHz 1,660 MHz
Memory bus 128 bit 128 bit
Memory 1,024 MB 256 MB
Memory type GDDR3 GDDR3
Memory bandwidth 25.6 GB/s 26.56 GB/s

noise and power

TDP 39W 75W


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