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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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Higher effective memory clock speed 1,600 MHz vs 1,000 MHz 60% higher effective memory clock speed
Higher memory bandwidth 25.6 GB/s vs 8 GB/s Around 3.2x higher memory bandwidth
Higher memory clock speed 800 MHz vs 500 MHz 60% higher memory clock speed
More shading units 400 vs 80 320 more shading units
Wider memory bus 128 bit vs 64 bit 2x wider memory bus
Slightly more texture mapping units 20 vs 8 12 more texture mapping units
Front view of Radeon HD 5450 PCIe x1

Reasons to consider the
ATi Radeon HD 5450 PCIe x1

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Slightly lower TDP 19W vs 39W 2.1x lower TDP

Features Key features of the Radeon HD 5570  vs 5450 PCIe x1 

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
Radeon HD 5450 PCIe x1
2.6 GPixel/s

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

Radeon HD 5570
13 GTexel/s
Radeon HD 5450 PCIe x1
5.2 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
5450 PCIe x1 
GPU name Redwood Cedar
Market Desktop Desktop
Clock speed 650 MHz 650 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 400 80
Texture mapping units 20 8
Render output processors 8 4
Compute units 5 2
Pixel rate 5.2 GPixel/s 2.6 GPixel/s
Texture rate 13 GTexel/s 5.2 GTexel/s
Floating-point performance 520 GFLOPS 104 GFLOPS


Radeon HD 5570  vs
5450 PCIe x1 
Memory clock speed 800 MHz 500 MHz
Effective memory clock speed 1,600 MHz 1,000 MHz
Memory bus 128 bit 64 bit
Memory 1,024 MB 512 MB
Memory type GDDR3 DDR3
Memory bandwidth 25.6 GB/s 8 GB/s

noise and power

TDP 39W 19W


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