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Differences What are the advantages of each

Front view of Radeon HD 4850 X2

Reasons to consider the
ATi Radeon HD 4850 X2

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Is dual GPU Yes vs No About half of graphics cards are dual GPU
Higher memory bandwidth 127.36 GB/s vs 63.55 GB/s More than 2x higher memory bandwidth
Better floating-point performance 2,000 GFLOPS vs 1,000 GFLOPS 2x better floating-point performance
More shading units 1,600 vs 800 Twice as many shading units
Much wider memory bus 512 bit vs 256 bit 2x wider memory bus
More render output processors 32 vs 16 Twice as many render output processors
Higher texture rate 50 GTexel/s vs 25 GTexel/s 2x higher texture rate
More texture mapping units 80 vs 40 Twice as many texture mapping units
Higher pixel rate 20 GPixel/s vs 10 GPixel/s 2x higher pixel rate
Better cloud gate factor score 15.53 vs 12.95 Around 20% better cloud gate factor score
More compute units 20 vs 10 Twice as many compute units
Front view of Radeon HD 4850

Reasons to consider the
ATi Radeon HD 4850

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Much lower TDP 110W vs 250W 2.3x lower TDP

Benchmarks Real world tests of Radeon HD 4850 X2 vs 4850

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

Cloud Gate Factor Data courtesy FutureMark

Reviews Word on the street

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