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Differences What are the advantages of each

Front view of Radeon HD 3470

Reasons to consider the
ATi Radeon HD 3470

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Higher clock speed 800 MHz vs 700 MHz Around 15% higher clock speed
Significantly lower TDP 30W vs 125W 4.2x lower TDP
Front view of GeForce GT 8800

Reasons to consider the
ASUS GeForce GT 8800

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Higher memory bandwidth 64.6 GB/s vs 15.2 GB/s Around 4.2x higher memory bandwidth
Slightly better PassMark score 754 vs 147 Around 5.2x better PassMark score
Higher texture rate 39.2 GTexel/s vs 3.2 GTexel/s 12.2x higher texture rate
More texture mapping units 56 vs 4 52 more texture mapping units
Significantly wider memory bus 256 bit vs 64 bit 4x wider memory bus
More render output processors 16 vs 4 12 more render output processors
Higher pixel rate 11.2 GPixel/s vs 3.2 GPixel/s Around 3.5x higher pixel rate

Benchmarks Real world tests of Radeon HD 3470 vs GeForce GT 8800

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

Features Key features of the Radeon HD 3470  vs GeForce GT 8800 

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

Radeon HD 3470
15.2 GB/s
GeForce GT 8800
64.6 GB/s

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

Radeon HD 3470
3.2 GPixel/s
GeForce GT 8800
11.2 GPixel/s

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

Radeon HD 3470
3.2 GTexel/s
GeForce GT 8800
39.2 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 3470
64 GFLOPS
GeForce GT 8800
392 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

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