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Differences What are the advantages of each

Front view of Radeon HD 3650

Reasons to consider the
Sapphire Radeon HD 3650

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Higher clock speed 725 MHz vs 589 MHz Around 25% higher clock speed
Higher effective memory clock speed 1,600 MHz vs 800 MHz 2x higher effective memory clock speed
Higher memory bandwidth 25.6 GB/s vs 6.4 GB/s More than 4x higher memory bandwidth
Significantly higher memory clock speed 800 MHz vs 400 MHz 2x higher memory clock speed
Wider memory bus 128 bit vs 64 bit 2x wider memory bus
Front view of GeForce 205

Reasons to consider the
Nvidia GeForce 205

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Lower TDP 31W vs 65W 2.1x lower TDP

Features Key features of the Radeon HD 3650  vs GeForce 205 

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

Radeon HD 3650
25.6 GB/s
GeForce 205
6.4 GB/s

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

Radeon HD 3650
2.9 GPixel/s
GeForce 205
2.36 GPixel/s

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

Radeon HD 3650
5.8 GTexel/s
GeForce 205
2.36 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 3650
GeForce 205
22.43 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 3650  vs
GeForce 205 
GPU brand ATI Nvidia
GPU name RV635 GT218
Market Desktop Desktop
Clock speed 725 MHz 589 MHz
Is dual GPU No No
Reference card ATi Radeon HD 3650 725 MHz 256 MB None

raw performance

Shading units 120 8
Texture mapping units 8 4
Render output processors 4 4
Pixel rate 2.9 GPixel/s 2.36 GPixel/s
Texture rate 5.8 GTexel/s 2.36 GTexel/s
Floating-point performance 174 GFLOPS 22.43 GFLOPS


Radeon HD 3650  vs
GeForce 205 
Memory clock speed 800 MHz 400 MHz
Effective memory clock speed 1,600 MHz 800 MHz
Memory bus 128 bit 64 bit
Memory 512 MB 512 MB
Memory type DDR2 DDR2
Memory bandwidth 25.6 GB/s 6.4 GB/s

noise and power

TDP 65W 31W


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