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Differences What are the advantages of each

Front view of Radeon HD 5450

Reasons to consider the
ATi Radeon HD 5450

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Higher clock speed 650 MHz vs 500 MHz 30% higher clock speed
Front view of Mobility Radeon HD 4530

Reasons to consider the
ATi Mobility Radeon HD 4530

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Slightly higher effective memory clock speed 1,400 MHz vs 800 MHz 75% higher effective memory clock speed
Higher memory clock speed 700 MHz vs 400 MHz 75% higher memory clock speed

Features Key features of the Radeon HD 5450  vs Mobility Radeon HD 4530 

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 5450
2.6 GPixel/s

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

Radeon HD 5450
5.2 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


Radeon HD 5450  vs
Mobility Radeon HD 4530 
GPU name Cedar M92
Market Desktop Laptop
Clock speed 650 MHz 500 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 80 80
Texture mapping units 8 8
Render output processors 4 4
Compute units 2 1
Pixel rate 2.6 GPixel/s 2 GPixel/s
Texture rate 5.2 GTexel/s 4 GTexel/s
Floating-point performance 104 GFLOPS 80 GFLOPS


Radeon HD 5450  vs
Mobility Radeon HD 4530 
Memory clock speed 400 MHz 700 MHz
Effective memory clock speed 800 MHz 1,400 MHz
Memory bus 64 bit 64 bit
Memory 512 MB 512 MB
Memory type DDR2 GDDR3
Memory bandwidth 6.4 GB/s 11.2 GB/s

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