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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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Higher memory bandwidth 63.55 GB/s vs 25.6 GB/s Around 2.5x higher memory bandwidth
Significantly better sky diver factor score 124.95 vs 7.56 More than 16.5x better sky diver factor score
Higher effective memory clock speed 1,986 MHz vs 1,600 MHz Around 25% higher effective memory clock speed
Slightly better floating-point performance 1,000 GFLOPS vs 480 GFLOPS More than 2x better floating-point performance
More shading units 800 vs 320 480 more shading units
Wider memory bus 256 bit vs 128 bit 2x wider memory bus
More render output processors 16 vs 8 Twice as many render output processors
More compute units 10 vs 4 6 more compute units
Higher memory clock speed 993 MHz vs 800 MHz Around 25% higher memory clock speed
Front view of Radeon HD 4670

Reasons to consider the
ATi Radeon HD 4670

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Higher clock speed 750 MHz vs 625 MHz 20% higher clock speed
Lower TDP 59W vs 110W More than 45% lower TDP

Benchmarks Real world tests of Radeon HD 4850 vs 4670

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

T-Rex (GFXBench 3.0) Data courtesy CompuBench

Radeon HD 4850
Radeon HD 4670

Fire Strike Factor Data courtesy FutureMark

Sky Diver Factor Data courtesy FutureMark

Cloud Gate Factor Data courtesy FutureMark

Reviews Word on the street

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