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Differences What are the advantages of each

Front view of Radeon HD 4850

Reasons to consider the
ATi Radeon HD 4850

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Wider memory bus 256 bit vs 128 bit 2x wider memory bus
Higher memory clock speed 993 MHz vs 800 MHz Around 25% higher memory clock speed
Slightly better cloud gate factor score 12.95 vs 12.11 More than 5% better cloud gate factor score
Front view of Radeon HD 4770

Reasons to consider the
ATi Radeon HD 4770

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Higher effective memory clock speed 3,200 MHz vs 1,986 MHz More than 60% higher effective memory clock speed
Higher clock speed 750 MHz vs 625 MHz 20% higher clock speed
Lower TDP 80W vs 110W More than 25% lower TDP

Benchmarks Real world tests of Radeon HD 4850 vs 4770

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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