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Differences What are the advantages of each

Front view of Radeon HD 5770

Reasons to consider the
ATi Radeon HD 5770

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Significantly higher effective memory clock speed 4,800 MHz vs 1,800 MHz Around 2.8x higher effective memory clock speed
Better PassMark score 1,697 vs 638 Around 2.8x better PassMark score
Higher memory bandwidth 76.8 GB/s vs 14.4 GB/s More than 5.2x higher memory bandwidth
Slightly higher clock speed 850 MHz vs 775 MHz Around 10% higher clock speed
Better floating-point performance 1,360 GFLOPS vs 297.6 GFLOPS More than 4.5x better floating-point performance
More shading units 800 vs 192 608 more shading units
Higher memory clock speed 1,200 MHz vs 900 MHz Around 35% higher memory clock speed
More texture mapping units 40 vs 16 24 more texture mapping units
More render output processors 16 vs 8 Twice as many render output processors
Front view of GeForce 810A

Reasons to consider the
Nvidia GeForce 810A

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Lower TDP 15W vs 108W 7.2x lower TDP

Benchmarks Real world tests of Radeon HD 5770 vs GeForce 810A

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

Features Key features of the Radeon HD 5770  vs GeForce 810A 

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

Radeon HD 5770
76.8 GB/s
GeForce 810A
14.4 GB/s

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

Radeon HD 5770
13.6 GPixel/s
GeForce 810A
6.2 GPixel/s

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

Radeon HD 5770
34 GTexel/s
GeForce 810A
12.4 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 5770
1,360 GFLOPS
GeForce 810A
297.6 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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