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Differences What are the advantages of each

Front view of Radeon HD 3450 PCI

Reasons to consider the
ATi Radeon HD 3450 PCI

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Higher clock speed 600 MHz vs 398 MHz More than 50% higher clock speed
Front view of Radeon HD 2400

Reasons to consider the
ATi Radeon HD 2400

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Higher memory clock speed 495 MHz vs 400 MHz Around 25% higher memory clock speed

Features Key features of the Radeon HD 3450 PCI  vs 2400 

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

Radeon HD 2400
7.92 GB/s

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

Radeon HD 3450 PCI
2.4 GPixel/s
Radeon HD 2400
1.59 GPixel/s

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

Radeon HD 3450 PCI
2.4 GTexel/s
Radeon HD 2400
1.59 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 3450 PCI
48 GFLOPS
Radeon HD 2400
31.84 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 3450 PCI  vs
2400 
GPU brand ATI ATI
GPU name RV620 RV610
Market Desktop Desktop
Clock speed 600 MHz 398 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 40 40
Texture mapping units 4 4
Render output processors 4 4
Compute units 2 2
Pixel rate 2.4 GPixel/s 1.59 GPixel/s
Texture rate 2.4 GTexel/s 1.59 GTexel/s
Floating-point performance 48 GFLOPS 31.84 GFLOPS

memory

Radeon HD 3450 PCI  vs
2400 
Memory clock speed 400 MHz 495 MHz
Effective memory clock speed 800 MHz 990 MHz
Memory bus 64 bit 64 bit
Memory 512 MB 256 MB
Memory type DDR2 DDR2
Memory bandwidth 6.4 GB/s 7.92 GB/s

noise and power

TDP 25W 20W

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