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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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Slightly higher clock speed 650 MHz vs 600 MHz Around 10% higher clock speed
Front view of Radeon HD 3450 PCI

Reasons to consider the
ATi Radeon HD 3450 PCI

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GPUBoss is not aware of any important advantages of the 3450 PCI vs the 5450.

Features Key features of the Radeon HD 5450  vs 3450 PCI 

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
Radeon HD 3450 PCI
2.4 GPixel/s

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

Radeon HD 5450
5.2 GTexel/s
Radeon HD 3450 PCI
2.4 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 5450
104 GFLOPS
Radeon HD 3450 PCI
48 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 5450  vs
3450 PCI 
GPU brand ATI ATI
GPU name Cedar RV620
Market Desktop Desktop
Clock speed 650 MHz 600 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 80 40
Texture mapping units 8 4
Render output processors 4 4
Compute units 2 2
Pixel rate 2.6 GPixel/s 2.4 GPixel/s
Texture rate 5.2 GTexel/s 2.4 GTexel/s
Floating-point performance 104 GFLOPS 48 GFLOPS

memory

Radeon HD 5450  vs
3450 PCI 
Memory clock speed 400 MHz 400 MHz
Effective memory clock speed 800 MHz 800 MHz
Memory bus 64 bit 64 bit
Memory 512 MB 512 MB
Memory type DDR2 DDR2
Memory bandwidth 6.4 GB/s 6.4 GB/s

noise and power

TDP 19W 25W

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