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Differences What are the advantages of each

Front view of Radeon HD 3690

Reasons to consider the
ATi Radeon HD 3690

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Slightly higher memory bandwidth 26.56 GB/s vs 12.8 GB/s More than 2x higher memory bandwidth
More render output processors 16 vs 4 12 more render output processors
Slightly higher pixel rate 10.72 GPixel/s vs 2.8 GPixel/s More than 3.8x higher pixel rate
More shading units 320 vs 96 224 more shading units
Wider memory bus 128 bit vs 64 bit 2x wider memory bus
Front view of GeForce GT 430

Reasons to consider the
Nvidia GeForce GT 430

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Lower TDP 49W vs 75W Around 35% lower TDP

Features Key features of the Radeon HD 3690  vs GeForce GT 430 

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

Radeon HD 3690
26.56 GB/s
GeForce GT 430
12.8 GB/s

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

Radeon HD 3690
10.72 GPixel/s
GeForce GT 430
2.8 GPixel/s

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

Radeon HD 3690
10.72 GTexel/s
GeForce GT 430
11.2 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 3690
428.8 GFLOPS
GeForce GT 430
268.8 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 3690  vs
GeForce GT 430 
GPU brand ATI Nvidia
GPU name RV670 GF108
Market Desktop Desktop
Clock speed 670 MHz 700 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 320 96
Texture mapping units 16 16
Render output processors 16 4
Pixel rate 10.72 GPixel/s 2.8 GPixel/s
Texture rate 10.72 GTexel/s 11.2 GTexel/s
Floating-point performance 428.8 GFLOPS 268.8 GFLOPS

memory

Radeon HD 3690  vs
GeForce GT 430 
Memory clock speed 830 MHz 800 MHz
Effective memory clock speed 1,660 MHz 1,600 MHz
Memory bus 128 bit 64 bit
Memory 256 MB 512 MB
Memory type GDDR3 DDR3
Memory bandwidth 26.56 GB/s 12.8 GB/s

noise and power

TDP 75W 49W

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