Radeon HD 8670M vs Mobility Radeon HD 3870 |
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Differences What are the advantages of each
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| Higher clock speed | 775 MHz | vs | 660 MHz | More than 15% higher clock speed | |||
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| More memory | 2,048 MB | vs | 512 MB | 4x more memory | |||
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| Higher memory bandwidth | 54.4 GB/s | vs | 14.4 GB/s | More than 3.8x higher memory bandwidth | |||
| Slightly better PassMark score | 728 | vs | 513 | More than 40% better PassMark score | |||
| Much wider memory bus | 256 bit | vs | 64 bit | 4x wider memory bus | |||
| More render output processors | 16 | vs | 8 | Twice as many render output processors | |||
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Benchmarks Real world tests of Radeon HD 8670M vs Mobility Radeon HD 3870
PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark
Features Key features of the Radeon HD 8670M vs Mobility Radeon HD 3870
memory bandwidth Rate at which data can be read from or stored in onboard memory
pixel rate Number of pixels a graphics card can render to the screen every second
texture rate Speed at which a graphics card can perform texture mapping
floating point performance How fast the gpu can crunch numbers
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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