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Differences What are the advantages of each

Front view of Radeon HD 7730

Reasons to consider the
AMD Radeon HD 7730

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Lower TDP 47W vs 108W 2.3x lower TDP
Front view of Radeon HD 6770

Reasons to consider the
AMD Radeon HD 6770

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Higher clock speed 850 MHz vs 800 MHz More than 5% higher clock speed
Better floating-point performance 1,360 GFLOPS vs 614.4 GFLOPS Around 2.2x better floating-point performance
Higher pixel rate 13.6 GPixel/s vs 6.4 GPixel/s More than 2x higher pixel rate
More shading units 800 vs 384 416 more shading units
More render output processors 16 vs 8 Twice as many render output processors
Slightly higher memory clock speed 1,200 MHz vs 1,125 MHz More than 5% higher memory clock speed

Benchmarks Real world tests of Radeon HD 7730 vs 6770

CLBenchmark Raytrace Measures compute performance using OpenCL to do raytracing

Features Key features of the Radeon HD 7730  vs 6770 

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

Radeon HD 7730
72 GB/s
Radeon HD 6770
76.8 GB/s

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

Radeon HD 7730
6.4 GPixel/s
Radeon HD 6770
13.6 GPixel/s

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

Radeon HD 7730
19.2 GTexel/s
Radeon HD 6770
34 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 7730
614.4 GFLOPS
Radeon HD 6770
1,360 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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